intransitive verb trembled -·bled, trembling -·bling

1. to shake involuntarily from cold, fear, excitement, fatigue, etc.; shiver
2. to feel great fear or anxiety
3. to quiver, quake, totter, vibrate, etc.
4. to quaver her voice trembled

Etymology: ME tremblen < OFr trembler < VL *tremulare < L tremulus, trembling < tremere, to tremble < IE *trem- (< base *ter-) > Gr tremein, to tremble

noun

1. 1. the act or condition of trembling
   2. a fit or state of trembling
2. ☆ a disease of cattle and sheep caused by a poisonous, oily alcohol contained in certain plants, as white snakeroot, and characterized by muscular tremors and a stumbling gait: communicated to humans as milk sickness