Lexical Definition

‎θριαμβεύω‎ thriambeúō (three-am-byoo'-o) to triumph G:V
from a prolonged compound of the base of ‎θροέω‎

(cause) to triumph (over).

Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
θριαμβεύσασ having triumphed Col.2.15
θριαμβεύοντι leading in triumph 2Cor.2.14

Abbott-Smith

*† θριαμβεύω (< θρίαμβος, 1. a festal hymn to Bacchus. 2. The Roman triumphus),
1. to triumph (and rarely, c. acc., to triumph over; so perh. Col 2:15, but v. infr.).
2. to lead in triumph: c. acc. pers., II Co 2:14; hence, generally, to make a spectacle or show of: Col 2:15 (but v. supr.; cf. MM, Exp., xv; and esp. Field, Notes, 181).†

Abbott-Smith References

Book Refs
2 Corinthians 2:14
Colossians 2:15

Liddell-Scott-Jones

θριαμβεύω-εύω,

perfect τεθριάμβευκα [Refs 1st c.AD+]: (θρίαμβος):—triumph, [Refs 2nd c.BC+]; ἀπό τινος triumph over, [Refs 1st c.AD+]; also θ. ἐπὶ νίκῃ [Refs 1st c.AD+]

__II lead in triumph, of conquered enemies, τινα [NT]:—passive, -εύεσθαι ὑπό τινος [Refs 1st c.AD+]
__II.2 lead in triumph, as a general does his army, metaphorically, ἡμᾶς ἐν Χριστῷ [NT]
__III divulge, noise abroad, [Refs 9th c.AD+]

LSJ Scripture Refs: Col.2.152Cor.2.14