G2620
κατακαυχάομαι
to boast
κατα-καυχάομαι, -ῶμαι [in LXX: Zec.10:12 (הָלַךְ hith.), Jer.50:11 (עָלַז), Jer.50:38 (הָלַל)* ;] __1. to boast against, exult over: with genitive, Rom.11:18, Jas.2:13; before κατά, with genitive, Jas.3:14 (T, om. κατά). __2. before ἐν, to glory in (Za., l.with, Jer.27:38).† (AS)
The KJV translates G2620 in the following manner:
against (2x), boast (2x), Boast (2x), glory (2x)
Full Thayer's lexicon entry
κατακαυχάομαι — katakaucháomai
κατακαυχάομαι, κατακαυχωμαι, 2 person singular κατακαυχᾶσαι (contracted from κατακαυχαεσαι) for the Attic κατακαυχα (Rom 11:18; cf. Winers Grammar, § 13, 2 b.; (Buttmann, 42 (37); Sophocles Lexicon, Introduction, p. 40f; Tdf. Proleg., p. 123f); Lob. ad Phryn., p. 360), imperative 2 person singular κατακαυχῶ (Rom 11:18); (κατά against (cf. κατά, III. 7)); properly, to glory against, to exult over, to boast oneself to the injury of(a person or a thing): τίνος, Rom 11:18; Tdf. in Jas 3:14; κατά τίνος, ibid. R G L Tr WH (Buttmann, 185 (160); Winer's Grammar, § 30, 9 b. (cf. 432 (402))); ἔλεος (equivalent to ὁ ἐλεῶν) κατακαυχᾶται κρίσεως, mercy boasts itself superior to judgment, i. e. full of glad confidence has no fear of judgment, Jas 2:13. (Zec 10:12; Jeremiah 27:10, 38, not found in secular authors.)
3 occurrences
Romans (1), James (2)