Dictionary entry

ἐνκαυκάομαι

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

ἐν-καυκάομαι

(Rec. ἐγκ-, v.s. ἐν), -ῶμαι [in LXX: 51(52):196(97):7 (הָלַל hithp.); Ps 73(74):4 (שָׁאַג); Ps 105(106):47 (שָׁבַח)*;]

to take pride in, glory in: seq. ἐν, II Th 1:4.†