Celtiberian

Celtiberian is an extinct Celtic language, of the Continental subfamily (according to the traditional view). It was spoken in what is now northern Spain in the last few centuries BC, and is known from a small number of partially-understood inscriptions in the Roman alphabet, and in Iberian syllabic script, from c.300-100 BC.

Part of the Botorrita inscription

tiricantam percunetacam tocoitos'cue s'arniciocue s'ua compalces nelitom. necue to (u)ertaunei litom necue taunei litom necue mas'nai tisaunei litom, s'os aucu ares'talo tamai. uta os'cues s'tena uersoniti, s'ilapur s'leitom cons'cilitom capiseti, cantom s'ancilis'tara otanaum tocoitei eni.

The inscription seems to contain the numerals tiri (Old Irish tri:, Welsh tri) "three" and cantam/cantom (OIr ce:t, W cant) "hundred"; the conjunction -cue "and" (cf. Lepontic -pe, Latin -que) indicating that Celtiberian is q-Celtic; the negative ne (cf. OIr ni:); the verbal root cap- "to take" (cf. OIr gaibid); the word for "silver": s'ilapur (not of Indo-European origin); and the prefix uer- (OIr for-, Latin super-) "over", showing Celtic loss of PIE *p. We can see here also masculine o-stem nominative singulars in -os, perhaps accusatives in -om (cf. OIr nom.sg. fer, acc.sg. fer n-), and 3 sg. present tense verb forms in -ti (cf. Sanskrit nayati "he leads").