D defs.my
Entry 3 senses Webster, 1913

Trepidation

/trĕpˌ-ĭd-āsh'-ən/ · Trep·i·da·tion · IPA /ˌtɹɛp.ɪˈdeɪ.ʃən/
01 n. An involuntary trembling, sometimes an effect of paralysis, but usually caused by terror or fear; quaking; quivering.
  1. 1.
    An involuntary trembling, sometimes an effect of paralysis, but usually caused by terror or fear; quaking; quivering.
  2. 2.
    Hence, a state of terror or alarm; fear; confusion; fright; as, the men were in great trepidation.
  3. 3.
    A libration of the starry sphere in the Ptolemaic system; a motion ascribed to the firmament, to account for certain small changes in the position of the ecliptic and of the stars.(Anc. Astron.)