troth

/trɑθ/
noun
  1. A solemn promise or pledge, especially of loyalty or faithfulness, often in the context of marriage or a romantic relationship.
    • They exchanged troths in a quiet ceremony by the lake.
    • In medieval times, knights would swear troth to their lords.
    • He pledged his troth to her, vowing to stand by her side forever.
  2. Faithfulness or loyalty to a promise or commitment.
    • Their marriage was built on mutual troth and respect.
    • The story celebrates the troth between the two friends.
    • She kept her troth even when times were hard.