Definition of "groomsman"

groomsman

noun
plural groomsmen
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.
  Quotations
  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.
  1866, Thomas Hardy, chapter 13, in The Mayor of Casterbridge
  "Philip," said Mr. Wilbur, "when I marry, I want you to stand up with me--to be my groomsman."
  1888, Horatio Alger, The Errand Boy, Chapter XIV: Consulting the Oracle
  There were eight bridesmaids and groomsmen, and I asked McClellan and Franklin to be of the number, but distant service prevented them from coming, and Burnside and Reno, of the Ordnance, took their places.
  1894, Dabney Herndon Maury, Recollections of a Virginian in the Mexican, Indian, and Civil Wars, section 6