Emily Dickinson Lexicon

TREP-ID-A'TION, n. [L. trepidatio, from trepido, to tremble; Russ. trepeg, a trembling; trepeschu, to tremble.]

1. An involuntary trembling; a quaking or quivering, particularly from fear or terror; hence, a state of terror. The men were in great trepidation.
2. A trembling of the limbs, as in paralytic affections.
3. In the old astronomy, a libration of the eighth sphere, or a motion which the Ptolemaic system ascribes to the firmament, to account for the changes and motion of the axis of the world. Cyc.
4. Hurry; confused haste.