Webster’s Revised Unabridged Dictionary · 1913
Trothplight
Troth′plight′ (·plīt′), v. t. To betroth. [Obs.]
Troth′plight′, a. Betrothed; espoused; affianced. [Obs.] Shak.
Troth′plight′, n. The act of betrothing, or plighting faith; betrothing. [Obs.] Shak.