Don Quixote felt uneasy, Sancho frightened, and the duke and duchess displayed a certain trepidation.
I opened it with fear and trepidation, persuaded that it must be something serious that had impelled her to write to me when at a distance, as she seldom did so when I was near.
Don Quixote in his trepidation began saying, "I conjure thee, phantom, or whatever thou art, tell me what thou art and what thou wouldst with me.
"Since the memorable adventure of the fulling mills," said Don Quixote, "I have never seen Sancho in such a fright as now; were I as superstitious as others his abject fear would cause me some little trepidation of spirit.
There are no more uses of "trepidation" in the book.
Show samples from other sources
She began her first day at the new school with some trepidation.
I’m feeling something between normal trepidation and excessive test anxiety.