Thy

Pronunciation

• enPR: thÄ«, IPA: /ðaɪ/
• Rhymes: -aɪ

From Middle English thi, thy ("thy"), apocopated form of thin, thyn, thine ("thy", also "thine"), from Old English þīn ("thy, thine"), from Proto-Germanic *þīnaz. More at thou.

Full definition of thy

Pronoun

1. (archaic) That belongs to thee; the possessive form of thou.
2. (archaic or literary) your informal; that belongs to you singular.

Middle English thy "because, forwhy", shortened form of for-thy, forthy ("for that"), from Old English for þȳ þe ("because that") from for (instrumental preposition) + þȳ ("by that"), instrumental case of þæt. More at the, that.

Conjunction

1. (obsolete) because.