1. Used to refer to the one or ones being addressed: I'll lend you the book. You shouldn't work so hard. See Regional Notes at you-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.
ETYMOLOGY:
Middle English, from Old English ow, dative and accusative of g, ye, you. See yu- in Appendix I.