from The American Heritage® Dictionary of the English Language, 4th Edition
- pro. Used to indicate the one or ones belonging to thee.
- adj. Used instead of thy before an initial vowel or h: "The presidential candidates are practicing the first rule of warfare: know thine enemy” ( Eleanor Clift).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- Singular second person prevocalic possessive determiner (preconsonantal form: thy).
- pro. Singular second person possessive pronoun.
from the GNU version of the Collaborative International Dictionary of English
- prep. A form of the possessive case of the pronoun thou, now superseded in common discourse by your, the possessive of you, but maintaining a place in solemn discourse, in poetry, and in the usual language of the Friends, or Quakers.
from The Century Dictionary and Cyclopedia
- Of thee; the original genitive of the pronoun thou.
- Of thee; belonging to thee. Compare mine, 2.
- Belonging or pertaining to thee: in this sense a possessive.
- Used attributively, with the force of an adjective: commonly preferred before a vowel to thy, and now used only in that situation.
Middle English thin; see thy.(American Heritage® Dictionary of the English Language, Fourth Edition)
Middle English thyn, þyn, from Old English þīn. Cognate to German dein, Danish, Swedish and Norwegian din, Faroese tín and Icelandic þinn. (Wiktionary)