Source : Webster's Revised Unabridged Dictionary (1913)

Trothplight \Troth"plight`\, a.
   Betrothed; espoused; affianced. [Obs.] --Shak.

Trothplight \Troth"plight`\, n.
   The act of betrothing, or plighting faith; betrothing. [Obs.]
   --Shak.

Trothplight \Troth"plight`\, v. t.
   To betroth. [Obs.]