zonkeyn.

1953 N.Y. Herald Tribune 2 Sept. 1/7 Mr. [Gene] Holter explained that a zonkey was half zebra and half donkey, a combination the zoomen had never seen.

1953 N.Y. Herald Tribune 2 Sept. 1/7 ‘Zonkey is not exactly a scientific name and I'm no scientist’ Mr. Holter said, ‘But I don't know what else you would call it.’

1973 Indian Express 29 Oct. 6/8 A zebra and a donkey are expecting an offspring next March, Brooklyn's Prospect Park Zoo authorities say. It will be New York's first zonkey, though. The others were born in western zoos.

1983 N.Y. Times 6 Mar. x. 53/4 Melancholy exemplars abound: a male camel who recently injured a foreleg;..and a morose-looking zonkey— the mother a zebra, the father a donkey.