ἀεὶ δ' ἀρέσκειν τοῖς κρατοῦσιν → always try to please your masters, always be obsequious to the masters
adj.
P. and V. δεινός, φοβερός. φρικώδης (Dem. 644), V. δύσχιμος, ἔμφοβος, σμερδνός.
With terrible looks: V. δεινώψ; see grim.