αὐταρεσκέω
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)
to be self-satisfied, Tz.H.9.279.
Spanish (DGE)
estar satisfecho de sí mismo, ser arrogante μὴ αὐτοβούλους γίνεσθαι καὶ τῶν αὐταρεσκούντων Tz.H.9.272.