Where does “アテナイ” come from?

アテナイ (Japanese) comes from Ancient Greek Ἀθῆναι, from Ancient Greek Ἀθήνη — Athene; Athena.

Ancestry of “アテナイ”, step by step

StepLanguageWordMeaning
1Ancient GreekἈθῆναιAthens
2Ancient GreekἈθήνηAthene; Athena
Every word from Ancient Greek ἈθήνηEvery word from Ancient Greek Ἀθῆναι