groomsman

noun

Etymology: Etymology tree English groom English -s- Proto-Indo-European *mon- Proto-Germanic *mann- Proto-West Germanic *mann Old English mann Middle English man English man English groomsman From groom + -s- + man.

1. A man who serves as one of a number of attendants to a bridegroom at a wedding, one of whom is the best man.

   “The Scotchman, who assisted as groomsman, was of course the only one present, beyond the chief actors, who knew the true situation of the contracting parties.”

   “1888, Horatio Alger, The Errand Boy, Chapter XIV: Consulting the Oracle, "Philip," said Mr. Wilbur, "when I marry, I want you to stand up with me--to be my groomsman."”