with obj.
1- archaic pledge or promise solemnly (one's faith or loyalty)〈古〉宣誓, 保证。
1.1
be plighted
to be engaged to; be married to订婚; 嫁; 娶。
短语
plight one's troth
- 见TROTH.
词源
Old English plihtan 'endanger'， of Germanic origin; related to Dutch plicht and German Pflicht 'duty'. The current sense is recorded only from Middle English， but is probably original， in view of the related Germanic words.