thy

/ðaɪ/
determiner
  1. An old-fashioned or formal word meaning 'your', used before a noun that begins with a consonant sound.
    • Honor thy father and mother, as the old saying goes.
    • The poet wrote, 'I give thee my heart, and thou shalt keep thy promise.'
    • In the prayer, they said, 'Thy kingdom come, thy will be done.'
Synonyms
What does "thy" mean? | whatsthatwordmean | whatsthatwordmean