[1] : The Collaborative International Dictionary of English v.0.48

thou \thou\ thou, pron. sing.: nom. thou; poss. thy
   thimac or thine thimacn; obj. thee
   th=e. pl.: nom. you y=oo; poss. your y=oor
   or yours y=oorz; obj. you. oe. thou, thornu, as.
   eth=u, ethu; akin to os.  ofries. thu, g., dan.  sw.
   du, icel. thorn=u, goth. thornu, russ. tui, ir.  gael.
   tu, w. ti, l. tu, gr. sy`, dor. ty`, skr. tvam. root185.
   cf. thee, thine, te deum.
   the second personal pronoun, in the singular number, denoting
   the person addressed; thyself; the pronoun which is used in
   addressing persons in the solemn or poetical style.
   1913 webster

         art thou he that should come?            --matt. xi. 3.
   1913 webster

   note: "in old english, generally, thou is the language of a
         lord to a servant, of an equal to an equal, and
         expresses also companionship, love, permission,
         defiance, scorn, threatening: whilst ye is the language
         of a servant to a lord, and of compliment, and further
         expresses honor, submission, or entreaty." --skeat.
         1913 webster

   note: thou is now sometimes used by the friends, or quakers,
         in familiar discourse, though most of them corruptly
         say thee instead of thou.
         1913 webster
see also:
thou thy thine thee you your 
yours te deum 

[2] : The Collaborative International Dictionary of English v.0.48

you \you\ =u, pron. possess. your =ur or yours
   =urz; dat.  obj. you. oe. you, eou, eow, dat. 
   acc., as. e'ow, used as dat.  acc. of ge, g=e, ye; akin
   to ofries. iu, io, d. u, g. euch, ohg. iu, dat., iuwih, acc.,
   icel. yethr, dat.  acc., goth. izwis; of uncertain origin.
   root189. cf. your.
   the pronoun of the second person, in the nominative, dative,
   and objective case, indicating the person or persons
   addressed. see the note under ye.
   1913 webster

         ye go to canterbury; god you speed.      --chaucer.
   1913 webster

         good sir, i do in friendship counsel you
         to leave this place.                     --shak.
   1913 webster

         in vain you tell your parting lover
         you wish fair winds may waft him over.   --prior.
   1913 webster

   note: though you is properly a plural, it is in all ordinary
         discourse used also in addressing a single person, yet
         properly always with a plural verb. "are you he that
         hangs the verses on the trees, wherein rosalind is so
         admired ?" --shak. you and your are sometimes used
         indefinitely, like we, they, one, to express persons
         not specified. "the looks at a distance like a
         new-plowed land; but as you come near it, you see
         nothing but a long heap of heavy, disjointed clods."
         --addison. "your medalist and critic are much nearer
         related than the world imagine." --addison. "it is
         always pleasant to be forced to do what you wish to do,
         but what, until pressed, you dare not attempt." --hook.
         you is often used reflexively for yourself of
         yourselves. "your highness shall repose you at the
         tower." --shak.
         1913 webster
see also:
your yours you ye 

[3] : The Collaborative International Dictionary of English v.0.48

your \your\ =ur, pron.  a. oe. your, yoghour, eowr,
   eower, as. e'ower, originally used as the gen. of ge,
   g=e, ye; akin to ofries. iuwer your, os. iuwar, d. uw, ohg.
   iuw=er, g. euer, icel. yethar, goth. izwara, izwar, and
   e. you. root189. see you.
   the form of the possessive case of the personal pronoun you.
   1913 webster

   note: 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.
         1913 webster
see also:
you 

Your >> Y Words
Your, definition of term: Your
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