Definition from Wiktionary, the free dictionary
- (possessive) thy
From an earlier *þiu, *þiō, apparently formed from the demonstrative base *þi- with the nominal instrumental ending -ō. Cognate with Old Frisian þiu, Old Saxon þiu, Old High German diu, Old Norse því, Gothic 𐌸𐌴 (þē).
þȳ m, n
- therefore, for this reason, on that account; because, since; then.
- And þy is nu geworden wide and side to ful yfelan gewunan: and therefore it has now become an evil custom far and wide. (Sermo Lupi)
- (used with comparative) the
- hy beoð þy gesundran ond þy sigefæstran: they will be the safer and the more confident of victory. (Anglo-Saxon Riddles)