The story
- Proto-Indo-European · derived from*wi-“to separate”
- Ancient Greek · derived fromἴσος“equal”
- English todayisogloss
From iso- + gloss, ultimately from Ancient Greek ἴσος (ísos, “equal”) (possibly from Proto-Indo-European *wi- (“to separate”)) + γλῶσσα (glôssa, “tongue; language”) (of unknown origin, perhaps Proto-Indo-European *glṓgʰs).
Words from the same roots
Ancient Greekἴσος all →
isotropicisothermisochronousisobariso-isochronalisochrony
Etymology from Wiktionary, CC BY-SA 4.0.