To beat, or pulsate, with more than usual force or rapidity; to beat in consequence of agitation; to palpitate; said of the heart, pulse, etc. My heart Throbs to know one thing. (Shak) Here may his head lie on my throbbing breast. (Shak)
Origin: OE. Robben; of uncertain origin; cf. Russ. Trepete a trembling, and E. Trepidation.