Definition of ye pronoun from the Oxford Advanced Learner's Dictionary

BrE BrE//jiː//
; NAmE NAmE//jiː//
; BrE weak form BrE//ji//
; NAmE weak form NAmE//ji//
(old use or dialect) a word meaning ‘you’, used when talking to more than one person Gather ye rosebuds while ye may.
Word Originpronoun Old English , of Germanic origin; related to Dutch gij and German ihr.
See the Oxford Advanced American Dictionary entry: ye