Quick Definition
Iboastagainst
Strong's Definition
to exult against (i.e. over)
Derivation: from G2596 (κατά) and G2744 (καυχάομαι);
KJV Usage: boast (against), glory, rejoice against
Thayer's Greek Lexicon
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.)
Mounce Concise Greek Dictionary
κατακαυχάομαι katakauchaomai 4x
to boast, glory over, assume superiority over, Rom_11:18 (2x); Jas_2:13 ; Jas_3:14
Abbott-Smith Greek Lexicon
† κατα -καυχάομαι , -ῶμαι ,
[in LXX : Zec_10:12 ( H1980 hith .), Jer_50:11 ( H5937 ), Jer_50:38 ( H1984 ) * ;]
1. to boast against, exult over: c . gen ., Rom_11:18 , Jas_2:13 ; seq . κατά , c . gen ., Jas_3:14 ( T , om . κατά ).
2. seq . ἐν , to glory in (Za., l.c ., Je 27:38).†
Liddell-Scott — Intermediate Greek Lexicon
κατακαυχάομαι fut. ήσομαι Dep. "to boast against" one, "exult over" him, τινος or κατά τινος NTest. : "to have no fear of", τινος id=NTest.
STEPBible — Tyndale Abridged Greek Lexicon
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)