The Collaborative International Dictionary of English v.0.48:
Hey \Hey\, a. [See High.] High. [Obs.] --Chaucer. [1913 Webster]The Collaborative International Dictionary of English v.0.48:
Hey \Hey\, interj. [OE. hei; cf. D. & G. hei.] 1. An exclamation of joy, surprise, or encouragement. --Shak. [1913 Webster] 2. A cry to set dogs on. --Shak. [1913 Webster]