betrothed
noun
[ bɪˈtrəʊðd ]
• the person to whom one is engaged.
• "how long have you known your betrothed?"
Similar:
engaged (to be married),
promised,
pledged,
contracted,
bound,
affianced,
plighted,
espoused,
handfast,
betroth
verb
• formally engage (someone) to be married.
• "in no time I shall be betrothed to Isabel"
Origin:
Middle English betreuthe : from be- (expressing transitivity) + truth. The change in the second syllable was due to association with troth.