ἀλαζ-ονεία · alaz-oneia — LSJ
false pretension, imposture, Pl. Grg. 525a, D. 22.47, etc., cf. Arist. EN 1127a13, Thphr. Char. 23; ὑπʼ ἀλαζονείας Ar. Ra. 919: in pl., Id. Eq. 290, 903, Isoc. 12.20; boastfulness, Procop. Pers. 1.11 : metaph., ἀ. χορδῶν their over-readiness to sound, opp. ἐξάρνησις, Pl. R. 531b. [That penult. is long appears from Ar.ll. cc., Men. 737.]