TgJ Is8:8 :כִנְחַל מְגַבַּר‏ : like a strongly flowing wadi
See the entire entry for gbr vb. to prevail

TgJ Is8:8 :וְיִעדֵי בְאַרעָא דְבֵית יְהוּדָה כִנחַל מְגַבַר‏ : they shall pass through Judah like a powerful wadi
See the entire entry for məḡabbar adj. manly