βάρβαρος, -ον (prob. onomatop. descriptive of unintelligible sounds),

[in LXX: Ps 113 (114):1 (לעז), Eze.21:31 (36) (בּער), 2Ma.2:21 4:25 10:4, 3Ma.3:24 * ;]

barbarous, barbarian, strange to Greek language and culture (and also, after the Persian war, with the added sense of brutal, rude): Act.28:2, 4 Rom.1:14, 1Co.14:11, Col.3:11 (see Lft. in l. and Notes, 249).†

(AS)

barbarous; barbarian; brutal; rude