出典:Wiktionary
Borrowed from Late Latin peroneus, clipping of mūsculus peroneus (“peroneal muscle”).
peroneus (複数形 peronei)
From Ancient Greek περόνη (perónē, “small bone of the leg, fibula”) + -eus (adjectival suffix).
peroneus (feminine peronea, neuter peroneum); first/second-declension adjective (Late Latin)