the.com/betrothed

A promise wearing a person, scheduled for delivery at the altar.

means Engaged to be married; pledged to another by a formal promise of marriage.

from From Middle English betrouthen, built from be- plus trouthe, the older form of 'truth' — which once meant not a fact but a pledge, one's given word. To be betrothed is literally to be 'be-truthed': bound by truth in its oldest sense, where truth and a sworn promise were the same thing. The same trouthe survives in the wedding vow 'I plight thee my troth.'

old grammar
From troth, meaning truth or pledged faith
binding act
Once broken, it could trigger actual lawsuits
child clauses
Royals were betrothed before learning to walk
ring origin
Engagement rings began as betrothal down payments
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