English isogloss

← German ich (cognate)

← English iso (prefix)

← English gloss (prefix)

← Ancient Greek ἴσος (derived)

← Ancient Greek γλῶσσα (mention)

← Proto-Indo-European *wi- (derived)

← Proto-Indo-European *glōgʰs (derived)

← German Low German ik (cognate)

→ English isoglossic (suffix)

→ English isoglossal (suffix)