A strengthened form of ethos; usage, i.e. (plural) moral habits -- manners.
see GREEK ethos
1. a customary abode, dwelling-place, haunt, customary state (Homer, Hesiod, Herodotus, others).
2. custom, usage (cf. German Sitzen,Sitte); plural τά ἤθη morals, character (Latinmores) 1 Corinthians 15:33 from Menander; cf. Menander fragment, Meineke edition, p. 75. (Sir. 20:26 (25); 4 Macc. 1:29; 2:7, 21.)