Verb
To contract to any one for a marriage; to engage or promise in order to marriage; to affiance; -- used esp. of a woman.
To promise to take (as a future spouse); to plight one's troth to.
To nominate to a bishopric, in order to consecration.
Source: Webster's dictionaryPriam decided to betroth Cassandra to Telephus’s son Eurypyplus after Telephus had reinforced the Trojans by sending them an army of Mysians to come to defend Troy for them. Source: Internet
Within two years, war was declared against France and the Emperor was once again welcome in England, where plans were afoot to betroth him to Catherine's daughter Mary. Source: Internet