/wop"i tee/ , n. , pl. wapitis , ( esp. collectively ) wapiti .
elk (def. 2).
[ 1806, Amer.; wa·piti lit., white rump (equiv. to Proto-Algonquian * wa·p - white + *- etwiy - rump); introduced as an E word by U.S. physician and naturalist Benjamin S. Barton ]