TgO Gen49:24 :בְכֵין אִתרְמַא דְהַב עַל דְרָעוֹהִי‏ : then gold was installed on his arms
See the entire entry for drāˁ, drāˁā n.m./f. arm

TgO Gen49:24 :וְשַוִי תוּקפָא רוּחצָנֵיה‏ : he set strength as his reliance
See the entire entry for ruḥṣān, ruḥṣānā n.m. security, reliance