thy

This term is an archaic second-person singular possessive. It was historically used to address a single person in an intimate or inferior social position, creating a sharp distinction from the formal thou. In modern English, it is almost exclusively encountered in religious texts, poetry, or historical reenactments to evoke a sense of antiquity or sacredness. Using this word today typically signals a deliberate attempt to sound biblical or Shakespearean. It carries a heavy weight of tradition and formality, though it originally functioned as the informal counterpart to your.