I.
Etymology: Middle English thin, from Old English thīn, gen. of thū, thu thou; akin to Old High German dīn (gen. of dū, du thou), Old Norse thīn (gen. of thū thou), Gothic theina (gen. of thu thou) — more at thou
obsolete
possessive of thou I
II. |)thīn adjective
Etymology: Middle English thin, from Old English thīn — more at thy
archaic : thy — used especially before a word beginning with a vowel or h
give every man thine ear, but few thy voice — Shakespeare
a true report which I heard … of thine acts — 2 Chron 9:5 (Authorized Version)
peace be to thine helpers — 1 Chron 12:18 (Authorized Version)
III. pronoun, singular or plural in construction
Etymology: Middle English thin, from Old English thīn, from thīn, adjective, thy — more at thy
: something belonging to thee
all that I have is thine — Lk 15:31 (Authorized Version)
: thy one or thy ones — used without a following noun as a pronoun equivalent in meaning to the adjective thy
not my will, but thine , be done — Lk 22:42 (Authorized Version)
mine eyes, even sociable to the show of thine , fall fellowly drops — Shakespeare
— often used after of to single out one or more members of a class belonging to or connected with the one that is being addressed
thou too, desert stream! no pool of thine … did e'er reflect the stately virgin's robe — S.T.Coleridge
or merely to identify something or someone as belonging to or connected with the one that is being addressed without any implication of membership in a more extensive class
what means that hand upon that breast of thine — Shakespeare
those linen cheeks of thine — Shakespeare
— used archaically especially in biblical, ecclesiastical, solemn, or poetic language and still surviving to some extent in ordinary usage in the speech of Friends especially among themselves; compare yours