you 
(y
)
pron.1. Used to refer to the one or ones being addressed: I'll lend you the book. You shouldn't work so hard. See Notes at y'all, you-uns.
2. Used to refer to an indefinitely specified person; one: You can't win them all.
3. Nonstandard Used reflexively as the indirect object of a verb: You might want to get you another pair of shoes. See Note at me.
[Middle English, from Old English ēow, dative and accusative of gē, ye, you; see yu- in the Appendix of Indo-European roots.]