Definition of pledge (or plight) one's troth in English:

pledge (or plight) one's troth

phrase

formal, archaic
  • Make a solemn pledge of commitment or loyalty, especially in marriage.

    ‘I solemnly pledge my troth’
    ‘I watched her plight her troth to him’
    ‘in December they will plight their troth at the register office’
    • ‘Couples visit the church all year round to renew their wedding vows and pledge their troth in front of the large aquarium before the altar in which St Valentine's mortal remains (shin bones and a few ribs) are kept.’
    • ‘‘I think the governor has to be given on opportunity to plight his troth to the electorate of California,’ she said.’
    • ‘You've finally done it - tied the knot, taken the plunge, plighted your troth, joined in holy matrimony.’
    • ‘Based on extremely unscientific assumptions, I'm sure that getting married aboard used to be about escaping from all the wedding hassles and family politics, and plighting your troth in romantic seclusion.’
    • ‘Famous as a destination for eloping couples to tie the knot, Gretna Green is still as popular as it was back in 1754, when it became the first stop over the border where rebellious young English lovers could legally pledge their troth.’
    marry, be married, get married, be wed, become husband and wife, become man and wife, pledge one's troth, plight one's troth
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