TgO Deut33:2 :יוי מִסִינַי אִתגְלִי וְזֵיהוֹר יְקָרֵיה מִסֵעִיר אִתַחזִי‏ : the Lord was revealed from Sinai and his splendid glory seen from Seir
See the entire entry for zēhōr v.n.D shining