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Webster 1913 Edition

Noun.

An elastic band worn around the wrist, as for the purpose of securing the upper part of a glove.

wristlet ‎(plural wristlets)

a band which encircles the wearer's wrist, especially a closely knitted one to keep it warm

Webster's Seventh New Collegiate Dictionary, Springfield, Massachusetts, G.&C. Merriam Co., 1967