[trem.ble] vi trem.bled ; trem.bling [ME, fr. MF trembler, fr. ML tremulare, fr. L tremulus tremulous, fr. tremere to tremble; akin to Gk tremein to tremble] (14c) 1: to shake involuntarily (as with fear or cold): shiver
2: to move, sound, pass, or come to pass as if shaken or tremulous "the building trembled from the blast"
3: to be affected with fear or doubt "~ for the safety of another" -- trem.bler n
[2]tremble n (1609) 1: an act or instance of trembling; esp: a fit or spell of involuntary shaking or quivering
2. pl but sing in constr: severe poisoning of livestock and esp. cattle by a toxic alcohol present in a snakeroot (Eupatorium rugosum) and rayless goldenrod that is characterized by muscular tremors, weakness, and constipation