Ancient Greek ἰσοσκελής

← Ancient Greek ἴσος (affix)

← Ancient Greek σκέλος (affix)

← Ancient Greek -ής (affix)

→ English isosceles (derived)

→ Catalan isòsceles (derived)

→ Welsh isosgeles (derived)

→ German gleichschenklig (calque)

→ French isocèle (derived)

→ Latin isosceles (borrowed)