...And we drove in trepidation all the way to Bow Street... 
Grant Allen 「An African Millionaire」
... He rapped a thirdtime, to satisfy any lingering doubt in the minds of those who he feltsure were listening in some trepidation...
Charles W. Chesnutt 「The House Behind the Cedars」
...It must be a beast, then, and we might as well have saved our trepidation...
Mark Twain (Samuel Clemens) 「A Connecticut Yankee in King Arthur’s Court, Complete」
...In some trepidation theystepped inside and stood blinking inthe half darkness...
Various 「Astounding Stories of Super-Science, March 1930」
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