Celtiberian shows the characteristic sound changes of Celtic languages, such as:
PIE consonants • PIE
*bʰ, *dʰ, *gʰ >
b, d, g: Loss of
Proto-Indo-European (PIE) voiced aspiration. • Celtib. and Gaulish [Gaul.] placename element '''''' 'hill, town, akro-polis' to enclose' enclose' hо̄rdh-s
, gen. *ghrdh-os'' ‘enclosure, garden, pen') and its many IE cognates. • '''''' 'daughter' ''; cf. Common Celtic (ComCelt.) . • '''''' 'mine'
ku: ''''
horse
(in the name Ekualakos'')
b:
bindis 'legal agent'
gu: '
*φ > ∅': loss of PIE ,
e.g. (Celtib., OIr., and OBret) vs. Lat. and
Sanskrit [Skt. ]. '''''' acc. pl. fem. 'six feet, unit of measure' (2-ny-a''. However, it is possible that, as in other Celtic languages, *
p before
-l- was voiced to
b, if the spelling of the place name '
konbouto (Roman
Conplutum) represents /konblouto/. Final
*-m is preserved in Celtiberian (and Lepontic), a further indication of these dialects' conservatism. It is generally fronted to
-n in Gaulish (exceptional cases, for instance on the
Larzac tablet, are probably due to influence from Latin):
boustom "stable."
Consonant clusters • PIE
*mn >
un: as in Lepontic, Brythonic, and Gaulish, but not Old Irish and seemingly not Galatian. '''''' 'neighbour'
un: ''''
mn'': 'damage' bl
as in other Celtic languages, suggested by the placename konbouto'
(Roman Conplutum'') if that represents /konblouto/. • ''''
*x
: Dexivates''. • PIE
*gt >
*kt >
*tt / t: '''''' 'constructions, buildings'
*xt:
luxtu *st: as opposed to Gaulish, Irish and Welsh, where the change was
*st >
ss. This preservation of the PIE cluster
*st is another indication of the phonological conservatism of Celtiberian. '''''' 'excellent'
e: • '''''' 'in Togotis'
a: • '''''' 'fenced, enclosed'
o: • '''''' (dat.sing.) 'for the last'
ē >
ī?. This Celtic reflex isn't well attested in Celtiberian. e.g. IE meaning "king, ruler" vs. Celtiberian
-reiKis, Gaulish
-rix, British
rix, Old Irish , Old Welsh, Old Breton
ri meaning "king". In any case, the maintenance of PIE ē = ē is well attested in '''''' 'he did'
ā: • '''''' 'to burn'
a/u: Celt. in final syllables, in non-final syllables;
e.g.: • '''''' 'he must give'
w-:
uta 'conj. and, prep. besides'
an /
*m̥ >
am: • '''''' 'silver' '''''' 'nine' 'civil parish, shire' (modern Spanish
Tres Cantos). • PIE
*CHC > CaC (C = any consonant, H = any laryngeal), as in Common Celtic and Italic (SCHRIJVER 1991: 415, McCONE 1996: 51 and SCHUMACHER 2004: 135): • '
CaC (C = any consonant, H = any laryngeal): ' 'prince'
arR and
*l̥R >
alR (R = resonant): '''''' 'part, share'
riP and
*l̥P >
liP (P = plosive): • '
PiRiKanTi CarV and *Cl̥HV > CalV': •
sailo 'dung, slurry' *
salyo aRC (H = any laringeal, R̥ any syllabic resonant, C = any consonant, as in Common Celtic (JOSEPH 1982: 51 and ZAIR 2012: 37): '''''' 'silver'
z/
th (/θ/) between vowels and of
-*d, -
*dʰ >
z/
th (/θ/) at the ends of words: •
adiza 'duty' < *
adittia < *
h₂ed-d(e)ik-t-ya. • '''''' 'highest' < *
ups-ed-yō. • '''''' 'territory' < *
teut-yō. •
rouzu 'red' < *
reudʰy-ō. •
olzo 'last' < *
h₂ol-tyo. •
ozas 'feet' < *
pod-y-ans. •
datuz < *
dh₃-tōd; '''''' 'free' (in: LOUZOKUM,
MLH IV, K.1.1.) < *
h₁leudʰy-ō; cf.
Oscan loufir 'free man',
Russian ljúdi 'men, people'. That this is one of only a very few phonological developments that distinguishes Celtiberian phonologically from Proto-Celtic is one reason Matasovic has deemed Celtiberian a very early independent branch of Proto-Celtic. It is noteworthy that this weakening of most non-initial Proto-Celtic voiced dental stops (
ds) seems to indicate that Celtiberian had taken the first step in what became more-widespread lenition of non-initial (and in some cases even initial) voiced consonants in later Celtic dialects. ==Morphology==