catamountain

or cat-o'-moun·tain

[ kat-uh-moun-tn ]
/ ˌkæt əˈmaʊn tn /

noun

a wild animal of the cat family, as the European wildcat, the leopard, or panther.

Origin of catamountain

1400–50; variant of cat o' mountain, late Middle English cat of the mountaine