kou·prey 
(kprā′)
(kprā′)n.
A large wild ox (Bos sauveli) of Cambodia, having a gray or blackish coat and, in the male, a large dewlap and long, spreading horns.
[Khmer kọọprẹy, wild ox : kọọ, cow, ox (from Old Khmer go, from Sanskrit gauḥ, go-; see gwou- in the Appendix of Indo-European roots) + prẹy, forest (from Old Khmer vrai).]