برق

مَبْرَقٌ مبرق [ A shining, gleaming, or glistening: or a time thereof ]. You say, جَاءَ عِنْدَ مَبْرَقِ الصُّبْحِ [ He came at the shining, &c., or at the time of the shining, &c., of the dawn; or] when the dawn shone, or gleamed, or glistened. (K, TA. [In the latter, مبرق is said to be here a meemee inf. n.])