Groomsman

Tom will be a groomsman at my wedding.

Time and elasticity of boyhood had so closed the sharp but evanescent wound in Billy's heart that he could stand the trial of being groomsman where he had wanted to be groom—more especially since he was supported through the emergency by a little sister of Lottie's who promised to be wondrously like her by the time Billy could stand up in the more enviable capacity.

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."

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.