νόμαιος
From LSJ
μὴ ἐν πολλοῖς ὀλίγα λέγε, ἀλλ΄ ἐν ὀλίγοις πολλά → don't say little in many words, but much in a few words (Stobaeus quoting Pythagoras)
English (LSJ)
α, ον, (νόμος) Ion. and later Gr. for νόμιμος,
A customary: νόμαια, τά, customs, usages, ξεινικὰ ν. Hdt.1.135; Ἑλληνικὰ ν. Id.2.91, al., cf. Max.Tyr.38.3; λίθων λευκῶν νομαίων Inscr.Délos 290.206 (iii B.C.): sg., Hdt.2.49. 2 prescribed by law, ἐκκλησία SIG589.4 (Magn. Mae., ii B.C.), cf. GDI5699 (Samos); ν. ἐπαραί ib.5653c10 (Chios).