betroth

动词 betroth:

1. give to in marriage
   同义词：engage, affiance, plight

1. Her father betrothed her to him at an early age.
   她父亲在她年幼时已把她许配给他。
2. She betrothed herself to him.
   她和他订婚了。

be.troth

v.tr.（及物动词）
be.trothed,be.troth.ing,be.troths
To promise to give in marriage:
订婚：对结婚的承诺：
例句：
was betrothed to a member of the royal family.
与一贵族家庭成员订婚

To promise to marry.
同意结婚

来源：
Middle English bitrouthen
中古英语 bitrouthen
bi- [be-]
bi- [前缀，表.全面地，彻底地.]
trouth [troth] from Old English trôowth * see deru-
trouth [忠实] 源自 古英语 trôowth *参见 deru-