groom-to-be

plural grooms-to-be

1. A man who is soon to be married.

   The bride-elect came over from the depot by one route and the groom-to-be by another.

   1875 July 2, “Napoleon V. He Retreats from Stamford,^([sic]) Ky., and Surrenders in Cincinnati.”, in W[illiam] P[ulaski] Walton, editor, The Interior Journal, volume IV, number 18 (173 overall), Stanford, Ky., →ISSN, →OCLC, page [2], column 2

   2 more examples

   The actual brides- and grooms-to-be are not in attendance—many youth would be embarrassed by their parents’ matchmaking efforts, and often do not live in the same city anyway.

   2012 March, Mary Bergstrom, “Tipping Gender Scales: From Boys Rule to Girl Power About Face”, in All Eyes East: Lessons from the Front Lines of Marketing to China’s Youth, New York, N.Y.: Palgrave Macmillan, →ISBN, page 77

   Tyler Anderson / A groom-to-be who has to make a decision between two very different women.

   2017, “Meet the other Amish men in The Men of Lancaster County series”, in Virginia Smith, The Amish Widower (The Men of Lancaster County; 4), Eugene, Ore.: Harvest House Publishers, →ISBN, page [319]