German Idee

← French idée (borrowed)

← Ancient Greek ἰδέα (derived)

← Ancient Greek εἴδω (mention)

← Latin idea (derived)

→ German Schnapsidee (compound)

→ German Ideenschrift (compound)

→ Ido ideo (derived)

→ Japanese イデー (borrowed)

→ Romanian idee (borrowed)

→ Yiddish אידעע (cognate)