Conceit

kon-set': An idiomatic rendering of a phrase, phronimoi en heautois, in Rom 11:25; Rom 12:16; meaning literally, "wise with one's self," i.e. "in one's own opinion," or, as in parallel Old Testament passages (Prov 26:5; Prov 26:12 the Revised Version, margin), "in his own eyes" (Hebrew `ayin).