Thīne
pronominal a. [A-S. thîn, properly and originally gen. of thu or thû, thou; Goth. theina, theins, O. Sax. thîn, O. Fries. thîn, Icel. thinn, Sw. & Dan. dîn, O. H. Ger. dîn, N. H. Ger. dein.] Belonging to thee; relating to thee; being the property of thee; thy;—formerly used for thy before a vowel, but in common usage, thy is now employed before a vowel in all cases.
Then thou mayest eat grapes thy fill, at thine own pleasure. Deut. xxiii. 24.
☞ Thine is used when the substantive to which it belongs is separated from the pronoun, or when the noun is not expressed; as, thine is the kingdom, and the power, and the glory; whose is this book? thine? it is not mine, but thine. It is sometimes preceded by the sign of the possessive case, like nouns, and is then also to be considered as a pronoun proper.
If any of thine be driven out unto the utmost parts of heaven. Deut. xxx. 4.
Thine (like thou) is generally superseded by your, but maintains its place in solemn discourse, in poetry, and in the common language of the Friends, or Quakers.