Liddell-Scott-Jones

νυμφαγωγός (numphagōgos) groomsman ^G:N-M

νυμφαγωγός-ός, όν,

leader of the bride, [Refs 5th c.BC+]; especially one who leads her from her home to the bridegroom's house, [Refs 2nd c.AD+]; especially in case of a second marriage, [Refs 2nd c.AD+]: metaphorically, of the Argo, as bearing Medea, ν. τρόπιν [Refs 3rd c.BC+]

__2 generally, friend, [LXX]
__II one who negotiates a marriage for another, [Refs 1st c.AD+]

_{LSJ Scripture Refs: LXX.Gen.21.22 ☩ LXX.Judg.14.20}