κατ-ᾰλαζονεύομαι · kat-alazoneuomai — LSJ
boast, brag largely, πρός τινα D. 21.169; ὡς . . Plu. Luc. 22.
exaggerate invidiously, Isoc. 15.5,31.
also, depreciate invidiously, Thphr. ap. D.L. 5.40.
κ. τινός to boast against one, Ph. 1.339, 2.85, Sm. Ps. 136(137).3, Suid. s.v. Ἀδράστεια.