Your (?), pron. & a. [OE. your, our, eowr, eower, AS. eower, originally used as the gen. of ge, g�xc7;, ye; akin to OFries. iuwer your, OS. iuwar, D. uw, OHG. iuw�xc7;r, G. euer, Icel. y[eth]ar, Goth. izwara, izwar, and E. you. 189. See You.]
The form of the possessive case of the personal pronoun you.
⇒ The possessive takes the form yours when the noun to which it refers is not expressed, but implied; as, this book is yours. "An old fellow of yours."
Chaucer.
© Webster 1913.