TgO Deut32:38 :יְקוּמוּן כְעַן וִיסַעֲדוּנְכוֹן יְהוֹן עֲלֵיכוֹן לְמַגִין‏ : let them now get up and help you, become a shield for you
See the entire entry for mḡen, mḡe/annā n.m./(f.) shield