ethic Copy link Outline 1. ēthĭcus (Gr. ἠθικός)2. mōrālis, e • ethic, ethical: 1. ēthĭcus (Gr. ἠθικός): for which Cic. uses the phr. de moribus, de Fat. 1, init.: Gell. 2. mōrālis, e: suggested by Cic. as an equivalent to Gk. ἠθικός , de Fat. l. c.: Quint. 6, 2, 8. Phr.: an e. treatise, liber de officiis scriptus: v. moral.