From Proto-Indo-European *h₂ḱrós. *akros high Old Irish: ér Gaulish: *axros ⇒ Gaulish: *Axrotalus Matasović, Ranko (2009) “*akro-”, in Etymological Dictionary...
(see there for further descendants) Proto-Hellenic: Ancient Greek: ἄκρος (ákros) Ionian Greek: ἄκρος (ákros) Proto-Italic: *ā̆kris (with change to i-stem)...
From *axkros, from Proto-Celtic *akros (“high, noble, great”) + *talus, from Proto-Celtic *talu (“front, forehead”). *Axrotalus m a male given name This...
Brill, →ISBN, page 1066 ^ Matasović, Ranko (2009) “*akro-”, in Etymological Dictionary of Proto-Celtic (Leiden Indo-European Etymological Dictionary Series;...