Ido ideo

← German Idee (derived)

← English idea (derived)

← English idea (derived)

← Esperanto ideo (derived)

← French idée (derived)

← Ancient Greek ἰδέα (derived)

← Italian idea (derived)

← Latin idea (derived)

← Russian идея (derived)

→ Ido ideala (affix)

→ Ido samideano (affix)