σκοταῖος
From LSJ
ἡ κέρκος τῇ ἀλώπεκι μαρτυρεῖ → you can tell a fox by its tail, small traits give the clue to the character of a person
English (LSJ)
α, ον, also ος, ον D.S.3.48, Plu.Fab.7:—
A in the dark, joined with a Verb, of persons, 1 before morning, ἐλείπετο τῆς νυκτὸς ὅσον σκοταίους διελθεῖν τὸ πεδίον X.An.4.1.5, cf. 10; ἔτι σ. παρῆλθεν Id.HG4.5.18; or, 2 after nightfall, ἤδη σ. ἀναγαγών Id.Cyr.7.1.45; σκοταῖοι προσιόντες Id.An.2.2.17: cf. κνεφαῖος. II of things, dark, χωρίον Hp.Mul.1.11; νύξ D.S.l.c.; ἐνέδραι in the dark, Plu. l.c.
