\Af*fi"ance\, n. [OE. afiaunce trust, confidence, OF.
afiance, fr. afier to trust, fr. LL. affidare to trust; ad +
fidare to trust, fr. L. fides faith. See {Faith}, and cf.
{Affidavit}, {Affy}, {Confidence}.]
1. Plighted faith; marriage contract or promise.
2. Trust; reliance; faith; confidence.
         Such feelings promptly yielded to his habitual
         affiance in the divine love.          --Sir J.
                                               Stephen.
         Lancelot, my Lancelot, thou in whom I have Most joy
         and most affiance.                    --Tennyson.

\Af*fi"ance\, v. t. [imp. ? p. p. {Affianced}; p. pr. ?
vb. n. {Affiancing}.] [Cf. OF. afiancier, fr. afiance.]
1. To betroth; to pledge one's faith to for marriage, or
   solemnly promise (one's self or another) in marriage.
         To me, sad maid, he was affianced.    --Spenser.
2. To assure by promise. [Obs.] --Pope.