The Proto-Indo-European middle
Miguel Carrasquer Vidal, Feb. 2016
Formally, middle forms can be separated into (1) a verbal stem, (2) personal endings, (3) a
o e ti g o el, a d
a set of additio al e di gs . For an overview of the attested middle forms
in Indo-European, see Appendix I.
Verbal stem
In the middle, the verbal stem shows no reduplication of itself, although middles from reduplicated
formations (perfect, reduplicated imperfect, etc.) are reduplicated. The root vocalism normally
shows zero grade, with stress on the endings, but i so e ases a rostati iddles , the stem has
e-grade and is stressed.
Personal endings
The normal endings are clearly related to those of the h2e-conjugation:
-h2-th2-Ø-mVdh-dhw-rIn the third person, we also find the mi-conjugation endings: -t-, -nt-. In the 1sg and 2sg -m- and -sare occasionally found, but these look like secondary innovations.
Linking vowel
After the personal ending, we find a linking vowel, which behaves in some respects like the thematic
vowel. As in the case of the thematic vowel, we can hypothesize that it was *ó when stressed, and *o
or *e when unstressed, depending on the voicing of the following segment. And, as in the case of
the thematic vowel, due to the existence of both barytonic and oxytonic forms, the pattern was
subsequently subject to analogical reshapings.
Additional endings
Very characteristic for the middle is the presence of additional endings after the linking vowel.
Besides no ending (*-Ø), we find *-m, *-r, *-j, and (in Hittite) *-d(h).
The ending *-Ø is attested in the Vedic 3sg past -ta, -a, 3pl past -nta; in the Greek 2nd and 3rd
persons past (-so, -to, -(s)the, -nto), in the Latin 2sg -re < *-so, in the Gothic forms -za, -da and -nda,
and in Armenian -aw, -aruk` and -an if from *-a-to, *-a-dhwe(sw) and *-a-nto. But the Hittite forms
without additional ending (-hha, -tta, -a, -wasta, -ttuma, -anta) may have resulted from loss of *-r in
final unstressed position (Yoshida 1990, Kloekhorst 2007).
The ending *-m is attested in the Vedic 2du. past -ithā , 3du. past -itā , 2pl. past -dhvam, 3pl.
past -ram. Greek has 1sg. past *- ā , 2/3du. past -sthon, and we may also have *-m in the Latin 2pl.
ending - i ī if that is from *-dhwom-oj.
The ending *-r is attested in the Hittite present middle (all forms except 2pl. +-ttumari), the
Tocharian present middle (all forms), and the Latin non-second person forms (-or, -tur, -mur, -ntur).
In Old Irish, the 2pl has no -r, and the -r in 2sg. -ther may be analogical (cf. 2sg impv. -the).
The ending *-j is found in the Vedic present middle (all forms), the Greek present middle
(-maj, -saj, -toj, -ntoj), and the Tocharian past middle (ToB -mai, -tai, -te, -mte, --, -nte).
The ending *-d(h) is only found in the Hittite past middle (all forms), but occasionally also occurs in
the present tense.
We can see that the additional endings have been pressed into service as tense-markers in several
Indo-European languages, but this does not appear to be their original function: *-j, which is
presentic in Vedic/Greek, is preteritic in Tocharian. The ending *-r is only attested as presentic, and
*-Ø, *-m and *-dh only as preteritic, but it is hard to imagine what need there possibly could have
been for two or more distinct present-markers, besides two or more preterit-markers. Of course we
ha e a si ilar u er of se o dar prese t for ati es *-u-, *-nu-, *-e-, *-je-, *-śe-, *-de-, *-dhe-,
*-te-), but none of them show any ambiguities between imperfective and aoristic sense, such as is
the case in middle *-oj- which can have both presentic and preteritic force.
If we look for other possible original functions of the additio al e di gs , atters get e e orse:
why, for instance, five different aspectual markers, or five mood markers, without traces of any clear
semantic distinction between them?
Dative agreement
In fact, I believe there is only one category that comfortably fits the presence of that many different
endings, and that is the category of person. This is partially confirmed by the distribution of the
additio al endings themselves. The clearest case is the marker *-r, which avoids being attached to
second person forms in Italo-Celtic and Hittite. The marker *-m is found only with second and third
person forms, with the exception of (secondary) Greek *- ā . This is very reminiscent of the
distributional pattern we would expect for a paradigm with dative agreement, as is found in a
language such as Basque. In Basque, dative agreement is marked on the (auxiliary) verb, but the
resulting grid lacks forms for first person subject performing an action for first person, and likewise
for second person x second person (see Appendix II).
We can therefore tentatively assign the ending *-r to a second person (singular) indirect object, while
*-m would denote a first person indirect object. It stands to reason to assign *-Ø to the third person
singular and *-j to the third person plural, as these two endings seem to show no clear restrictions in
their distribution. That leaves only *-d(h), which we can tentatively assign to 2pl indirect object
agreement, although there is no compelling evidence whatsoever in favour of that. In that case, *-m
would mark both the singular and plural of a first person indirect object.
There are also forms showing a long vowel or an additional laryngeal: perhaps the Vedic 1st
persons -i, -vahi, -mahi, if -i < *-h2, and certainly 2sg -thās, 2du -ithā , 3du -itā . Further, Hitt.
1sg -hhahari, -hhahati, Grk. 1sg *- ā , 3du (act.!) *-tā , and perhaps the enigmatic OIr. 2sg ending
-the(r). To explain these forms, we can set up additional dative agreement markers for the dual
persons: *-h2m, *-h2r, *-h2.
Grid
The resulting grid consists of the following elements:
ROOT
SUBJECT
IND.OBJ.
1
2
3
1
2
3
1sg/pl
--txā́
-ā́
-tā́
--dhwā́
-rā́
- tā́
e.g. CaRC- (> oxytone), CāRC- (> acrostatic)
sg -x, -tx, -Ø ~ -t,
pl -mdhw, -dhw, -n > -r ~ -nt
sg -ā́ , -ā́r < ā́ ? , -ā́
pl -ā́ , -ā́d(h), -ā́j
du -ā́xm, -ā́xr, -ā́x
2sg
-xā́r
--ā́r
-tā́r
-mdhwā́r
--rā́r
- tā́r
3sg
-xā́
-txā́
-ā́
-tā́
-mdhwā́
-dhwā́
-rā́
- tā́
2pl
-xā́dh
--ā́dh
-tā́dh
-mdhwā́dh
--rā́dh
- tā́dh
The 1pl subject forms were metathesized:
1 -- ā́dhr
- ā́dh - ā́sdh
3pl
-xā́j
-txā́j
-ā́j
-tā́j
-mdhwā́j
-dhwā́j
-rā́j
- tā́j
- ā́dhi
1du
--txā́x
-ā́x
-tā́x
--dhwā́x
-rā́x
- tā́x
--
2du
-xā́xr
--ā́xr
-tā́xr
-mdhwā́xr
--rā́xr
- tā́xr
3du
-xā́x
-txā́x
-ā́x
-tā́x
-mdhwā́x
-dhwā́x
-rā́x
- tā́x
- ā́dhxr
- ā́dhx
In the acrostatic forms (built on forms with long vowel in the verbal root), the accent was retracted
to the root, and the long vowel of the dative agreement marker developed into *e finally and before
voiceless consonants, *o elsewhere. The original distribution would have been:
1sg/pl
1 -2 -th2om
3 -om
-tom
1 -2 -dhwom
3 -rom
-ntom
2sg
-h2or
--or
-tor
-modhr
--ron (?)
-ntor
3sg
-h2e
-th2e
-e
-te
-modh
-dhwe
-re
-nte
2pl
-h2odh
--odh
-todh
-mesdh
--rodh
-ntodh
3pl
-h2oj
-th2oj
-oj
-toj
-modhi
-dhwoj
-roj
-ntoj
1du
--th2eh2m
-eh2m
-teh2m
--dhweh2m
-reh2m
-nteh2m
2du
-h2eh2r
--eh2r
-teh2r
-modhh2r
--reh2r
-nteh2r
3du
-h2eh2
-th2eh2
-eh2
-teh2
-modhh2
-dhweh2
-reh2
-nteh2
In the zero-grade forms (built on unlengthened verbal roots), the vowel should always have
remained as *-ó-. In practice, Ausgleich between the acrostatic and oxytone paradigms took place,
and we find unetymological forms like *-h2ar, *-h2aj; * -(t)o, * -ro, * -nto, etc.
Because of the presence of dual dative agreement markers, it is likely that dual subject forms were
eventually created. They can tentatively be reconstructed as follows:
1 --wodhr -wodh -wesdh -wodhi
2 -h2th2om --h2th2e --h2th2oj
3 -h2tom
-h2tor
-h2te
-h2todh -h2toj
--wodhh2r -wodhh2
-h2th2eh2m --h2th2eh2
-h2teh2m
-h2teh2r
-h2teh2
The third person marker is *-h2-t-, which testifies to the late creation of these forms (after the spread
of the middle to the mi-conjugation, see below).
Semantics and development
It is quite obvious that the endings of the middle are related to the endings of the h2e-conjugation.
To explain this, it has been suggested (Jasanoff 2003, Pooth 2014) that the PIE perfect and the
Anatolian hi-conjugation are ela oratio s o a origi al proto iddle ith stati e-intransitive or
detransitive semantics. The middle (unambiguously reflected both the Anatolian and non-Anatolian
branches of PIE) would best retain the original semantics of this Pre-PIE proto iddle .
Inherited background
I agree that the PIE h2e-conjugation can be traced back to a stative inflection, more specifically from a
(verbal) noun suffixed by personal forms of the copula (except in the third person). The original
Proto-Nostrati formation was: (verbal) noun in the inactive (*-a, pl. *-at- or *-an) + prefixconjugated forms of a er to e (*-ku-):
1.
2.
3.
1.
2.
3.
-a
-a
-a
-at
-at
-an
Ɂa-ku
ta-ku-a, (f.) ta-ku-i
ma-ku
ta-ku-an, (f.) ta-ku-in
In Semitic, this resulted in the stative/perfective suffixed conjugation, e.g. the Akkadian stative:
1.
2.
3.
1.
2.
3.
-âku
-âta, -âti
-a, -at
-ânu
-âtunu, -âtina
-û, -â
(W.Sem. -tu)
(S.Sem. -ka, -ki)
(and -âna, -âni)
(S.Sem. -kum, -kin)
The pl has su stituted the roke plural e di gs -û (m), -â (f). The variation between North Semitic
-t- and South Semitic -k- in the second persons can be explained if the original form was *-tk-. In the
1pl, expected *-tmku has been simplified to *-nu(a/i).
If we compare the Uralic1 and the PIE stative/perfective forms (as reflected in the h2e-conjugation
a d the iddle , e a re o stru t the Norther Nostrati e di gs as follo s:
1. *-ka
2. *-tka
3. *-a
Uralic *-k, PIE *-h2
Uralic *-tk > *-nk > *-ŋ > *-n (?), PIE *-th2
Uralic *-ø, PIE *-ø
1. *-tmku
2. *-ttku
3. *-an
Uralic *-mmək, PIE *-mtku > *- dγw (with metathesis)
Uralic *-ttək, PIE *-tku > *-dγw
Uralic *-n, PIE *-ér < *-én
Compared to the Afro-Asiatic forms, *-ku-a > *-ka has been generalized in the 1/2 singular, *-ku(n)
in the 1/2 plural.
The original prefix- o jugatio > i perfe ti e after the rise of the perfective in West-Semitic) was
completely lost in Northern Nostratic.
1
And, further afield, Chukchi-Kamchatkan and Eskimo-Aleut.
Uralic and Indo-European
In Uralic, the inherited stative became the stative/intransitive, with corresponding transitive forms
provided by new paradigms formed by addition of possessive personal markers to a verbal noun in
the inactive case (sg. *-ø < *-a; pl. Inlaut -t-, Auslaut -j < *-ati):
1.
2.
3.
1.
2.
3.
intr.
*-k
*-n (?)
*-ø
*-mmək
*-ttək
*-n, *-t
tr. sg.
*-mə
*-tə
*-sa
*-mat
*-tat
*-sat
tr.pl.
*-t-mə
*-t-tə
*-j + sa
*-t-mat
*-t-tat
*-j + sat
PIE apparently utilized a completely different strategy as compared to Uralic. Instead of assigning the
stative forms to the intransitive paradigm, the inherited stative developed (as in West-Semitic and
Egyptian) into a perfective, and acquired full-fledged intransitive, transitive singular and transitive
plural forms, as well as forms with indirect object agreement. This is similar to a verbal system like
that of Basque, for an impression of which see Appendix II.
Forms with a plural absolutive (intr.pl, tr. with pl. object) reduplicate the verbal root:
sg
pl
intr.
CáCCí-CaCCi-CáC-
tr.sg.
CáCCáCCaC-‘
tr.pl.
Cí-CaCCí-CaCCi-CáC-
tr.sg. + dat.
CaC- + ā́-DAT
CaC- + ā́-DAT
B le gthe i g the first o el, eo-i perfe ti e paradig s ere also reated:
sg
pl
Cā́Ć
Cī-CaCCī-CáC
Cā́CCā́CCāC-‘
́
Cī-CaĆ
Cī-CaCCī-CáC
CāC- + ā-́ DAT
CāC- + ā-́ DAT
For further details, see Carrasquer Vidal 2016.
Besides the perfective, a completely new set of verbal roots was created, disjoint from the h2econjugation, with endings based on the agglutination of personal pronouns, originally perhaps both
transitive and intransitive (which later merged):
1
2
3
Pre-PIE tr. / intr.
*-mu
*-mi
*-tu
(*-ti)
(*-u)
*-ta
PIE tr. / intr. / progressive
*-m
*-s
*-t
*-Vmwi, *-Cmi
*-Vswi, *-Csi
*-ti
1
2
3
*-mu-átu
*-tu-átu
(*-átu)
*-mé(sw)
*-té
*-ént
*-méswi, *-wéni
*-té, *-téni
*-énti
*-mu-án
*-tu-án
*-án-ta
*-wén
*-tér
This is the mi-conjugation. The creation of a whole new set of verbs might seem unusual, but it is
hat ulti atel ust follo fro the di hoto
et ee aoristi = h2e-conjugation) and
imperfective (= mi-conjugation) verbs that we see in PIE (or at least in LIV2).
The origin of the dative agreement forms
The fact that the 3pl ending is *-r in the h2e-conjugation middle (by the Auslaut-rule *-n > *-r)
suggests that the li ki g o el a d the additio al e di gs ere origi all a si gle ord, hi h as
later agglutinated to the personal forms of the verb. We can reconstruct the dative agreement
markers as follows:
1. ā́
2. ā́r (< ā́ ?)
3. ā́
1. ā́
2. ā́d h
3. ā́j
1. ā́x
2. ā́xr
3. ā́x
I
ot a are of a thi g si ilar to this elsewhere. It looks like a pronominal element *ā, pl. *āj
followed by the familiar first person marker *-m (and third person *-Ø). The second person endings,
however, are mysterious: *-r (or *-n?), *-dh (or *-d?). There is only a vague similarity to the h2econjugation endings (Uralic *-n, PIE *-dhw …
From dative to reflexive to middle
In the third person of the h2e-conjugation with dative agreement, originally, forms like *X-ó, *X-r-ój
ould ha e ea t he X-e(s/d) for her , or the X(ed) for the
ith the su je t a d the i dire t
object being different entities (like *X-óm he X-es for e . But the for s ould also e i terpreted
reciprocally and reflexively: *X-ó he X-e(s/d) for hi self , *X-r-ój the X(ed) with each other . I
time, this apparently became the primary use of these forms, and the pattern was copied by the miconjugation, giving rise to reflexive forms with 3rd person *-t-ó and *-nt-ój. From the 3rd person, the
reflexive spread to the other persons (the mi-conjugation forms adopting the established h2econjugation endings), and the connection with dative agreement was lost sight of. The refle i e I
do/did X for self (etc.) could at some point be expressed, both for h2e-conjugation as for miconjugation verbs, using either of the endings *-h2ar, *-h2a, *-h2adh, *-h2aj, *-h2ah2r or *-h2ah2, and
different dialects made different choices. Since the reflexive (middle), unlike the mi-conjugation and
the h2e-conjugation, did not have primary or secondary endings, one way in which the variant
endings were put to use was to distinguish present tense from past tense. Another way in which the
de ris fro the dati e agree e t for s could be used was to provide additional dual endings in the
active paradigms (e.g. 2du. *-(h2)th2om, *-(h2)th2eh2m, or 3du. *-(h2)tom, *-(h2)tor, *-(h2)te and
*-(h2)teh2m).
From the reflexive use, the semantics of the PIE middle, ranging from reflexive/reciprocal through
impersonal to passive, follow effortlessly.
In summary, the PIE middle arose as a verbal category showing indirect object agreement. Starting in
the third person, these forms also acquired reciprocal/reflexive use, and were then also adopted by
the mi-conjugation (in the third person). Subsequently, the reflexive spread to the 1/2 persons, and
the o e tio ith dati e agree e t as lost. There as o protomiddle with stative-intransitive
or detransitive semantics from which both the h2e-conjugation and the middle arose. The middle
arose as a pluripersonal agreement form within the context of the h2e-conjugation perfective.
Appendix I. Middle forms
2
Vedic
Hittite
Toch. A
Toch. B
Greek
Latin
O Irish
Gothic
Arm.
-ai
-i
-sai2
-thās
-tai, -ai
-ta, -a
-vahai
-vahi
-āthai, -ithai
-āthā , -ithā
-tam3
-athur
-ātai, -itai
-ātā , -itā
-t̄
-atur
-mahai
-mahi
-dhvai
-dhvam
-ntai, -rai
-nta, ran, -ram
-̮̮a, - ̮̮ari, -̮̮a̮ari
-̮̮at, -̮̮ati, -̮̮a̮ati
-tta, -ttati, -ttari
-tta, -ttat, -ttati
-tta, -ttari, -ttati, -a, -ari
-tta, -ttat, -ttati
-ār
-(w)e
-tār
-te
-tär
-t
-mar
-mai
-tar
-tai
-tär
-te
-mai
- ̄
-sai
-so
-tai,-toi
-to
-or
-ur
-da
-ay
-re,-ris
-ther,-the
-za
-ar
-tur
-thir
-da
-aw
-ton
-aton
-sthon
-ton
-t̄
-aton
-me(s)tha
-mur
-mir
-nda
-ak`
-sthe
- i ī4
-the, -d
-nda
-ntoi, -ntai
-nto
-ntur
-tir
-nda
-aruk`
-ayk`
-an
-sthon
-tẹ
-wašta, -waštari
-waštat
-ttuma
-ttumat
-anta, -antari
-antat, -antati
- tār
-mät
-cär
-c
-ntär
-nt
- tār
-mte
-tär
-t
-ntär
-nte
Cf. also Lith. -ì, Slav. -si < *-saj, employed as general 2 sg. endings.
Bold forms are active forms, in my opinion borrowed from the middle to make dual endings.
4
The origin of this form is controversial. I would derive it from *-dhwom + *-oj > *-bi ī > *- i ī > - i ī (or >
*-bi ī > - i ī).
3
Appendix II. Basque intransitive, transitive and dative agreement forms
To simplify matters, I will only give the present indicative forms of the intransitive auxiliary *da to
e , a d the tra siti e auxiliary *du to ha e o l the for s with third person object for the latter).
For more details, see Carrasquer Vidal 2004.
Intransitive and transitive forms:
intr. tr.sg. tr.pl.
1
naiz dut
ditut
2m haiz duk
dituk
2f
dun ditun
3
da
du
ditu
1
gara dugu ditugu
2
zara duzu dituzu
3
dira dute dituzte
The intransitive forms had reduplication in the plural:
*ga-di-dá > *gairá > gera ~ gara;
*za-di-dá > *zairá > zera ~ zara;
*ø-di-dá > dira.
Likewise in the plural transitive forms:
*ø-da-di-dú- > *diddú- > dituThe 1/2sg intr. were in my opinion originally *ná-da > *nā, *há-da > *hā, which were then extended
with the suppletive root *iza (which provides the infinitive/participle izan to e .
The absolutive prefixes are:
1 *na-,
2 *ha-,
3 *ø-,
1 *ga-,
2*za-,
3 *ø-.
The ergative suffixes are:
1 *-da,
2m *-ga,
2f *-na,
3 *-ø,
1 *-gu,
2 *-zu,
3 *-te (~ *-de).
The intransitive forms with dative agreement:
intr.dat. 1
2m
2f
1
-natzaik
natzain
2
hatzait
--3
zait
zaik
zain
1
-gatzaizkik gatzaizikin
2
zatzaizkit --3
zaizkit
zaizkik
zaizkin
3
natzaio
hatzaio
zaio
gatzaizkio
zatzaizkio
zaizkio
1
-hatzaigu
zaigu
-zatzaizkigu
zaizkigu
2
natzaizu
-zaizu
gatzaizkizu
-zaizkizu
3
natzaie
hatzaie
zaie
gatzaizkie
zatzaizkie
zaizkie
The root is suppletive tza- to lie instead of da- to e . The -i- < *-gi- comes from the verb e-gin to
do . In the plural this becomes -zki-, from the absolutive plural suffix -z- + -gi-.
The dative suffixes are almost identical to the ergative suffixes:
1 *-da,
2m *-ga,
2f *-na,
3 *-o,
1 *-gu,
2 *-zu,
3 *-e,
where 3rd person *-o and *-e probably derive from the demonstrative pronoun *hau, pl. *hai-.
The transitive forms with dative agreement:
tr.3sg.dat. 1
2m
2f
1
-diat
dinat
2m
didak
--2f
didan
--3
dit
dik
din
1
-diagu
dinagu
2
didazu
--3
didate
diate
dinate
tr.3pl.dat. 1
2m
2f
1
-dizkiat
dizkinat
2m
dizkidak --2f
dizkidan --3
dizkit
dizkik
dizkin
1
-dizkiagu dizkinagu
2
dizkidazu --3
dizkidate dizkiate dizkinate
3
diot
diok
dion
dio
diogu
diozu
diote
3
dizkiot
dizkiok
dizkion
dizkio
dizkiogu
dizkiozu
dizkiote
1
-diguk
digun
digu
-diguzu
digute
1
-dizkiguk
dizkigun
dizkigu
-dizkiguzu
dizkigute
2
dizut
--dizu
dizugu
-dizute
2
dizkizut
--dizkizu
dizkizugu
-dizkizute
3
diet
diek
dien
die
diegu
diezu
diete
3
dizkiet
dizkiek
dizkien
dizkie
dizkiegu
dizkiezu
dizkiete
The stem di- is to be derived from *du-gi-, from du- to ha e a d gi- to do . I the plural, e again
have the morpheme -zki-.
References
Carrasquer Vidal, Miguel, 2004, The Basque verb.
Carrasquer Vidal, Miguel, 2016, The prehistory of the h2e-conjugation.
Jasanoff, Jay, 2003, Hittite and the Indo-European Verb.
Kloekhorst, Alwin, 2007, The Hittite inherited lexicon.
LIV2 , 2001, Lexicon der indogermanischen Verben. Die Wurzeln und ihre Primärstammbildungen,
unter Leitung von Helmut Rix und der Mitarbeit vieler anderer bearbeitet von Martin Kümmel,
Thomas Zehnder, Reiner Lipp, Brigitte Schirmer. Zweite, erweiterte und verbesserte Auflage
bearbeitet von Martin Kümmel und Helmut Rix.
Pooth, Roland, 2014, The Proto-Indo-European voice system (draft).
Yoshida, Kazuhiko, 1990, The Hittite mediopassive endings in -ri.