plight2

 
Pronunciation: /plʌɪt/

verb

[with object] archaic
  • pledge or solemnly promise (one’s faith or loyalty): men to plighted vows were faithful
  • (be plighted to) be engaged to be married to.

Phrases

plight one's troth

see troth.

Origin:

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