Emily Dickinson Lexicon

THROB, v.i. [perhaps allied to drive and to drub; at least its elements and signification coincide; Gr. θορυβεω.]

To beat, as the heart or pulse, with more than usual force or rapidity; to beat in consequence of agitation; palpitate. The heart throbs with joy, desire or fear; the violent action of the heart is perceived by a throbbing pulse. My heart throbs to know one thing. Shak. We apply the word also to the breast. Here may his head live on my throbbing breast. Shak.