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Webster 1828 Edition

adv.

In a timid manner; weakly; without courage.

timidly ‎(comparative more timidly, superlative most timidly)

In a timid manner.
- 1945 May, George Orwell, chapter 6, in Animal Farm: A Fairy Story, London: Secker & Warburg, OCLC 3655473:
  
  The four young pigs who had protested when Napoleon abolished the Meetings raised their voices timidly, but they were promptly silenced by a tremendous growling from the dogs.

in a timid manner