affiance \af*fi"ance\, v. t. [imp. & p. p. affianced ([a^]f*f[imac]"anst); p. pr. & vb. n. affiancing ([a^]f*f[imac]"an*s[i^]ng).]

[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. [1913 Webster]

To me, sad maid, he was affianced. --Spenser. [1913 Webster]

2. To assure by promise. [Obs.]

--Pope. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

Affiance \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.

Source: Webster's Revised Unabridged Dictionary (1913)