betrothal
noun /bɪˈtrəʊðl/
/bɪˈtrəʊðl/
(formal or old-fashioned)- betrothal (to somebody) an agreement to marry somebody
婚约；订婚 词源From Middle English betreuthe: from be- (expressing transitivity) + truth. The change in the second syllable was due to association with troth + -al.