Is it ensure, insure, or assure?
late 13c., from Old French lebard, leupart (12c., Modern French léopard), from Late Latin leopardus, literally "lion-pard," from Greek leopardos, from leon "lion" + pardos "male panther," which generally is said to be connected to Sanskrit prdakuh "panther, tiger." The animal was thought in ancient times to be a hybrid of these two species.
(Heb. namer, so called because spotted, Cant. 4:8), was that great spotted feline which anciently infested the mountains of Syria, more appropriately called a panther (Felis pardus). Its fierceness (Isa. 11:6), its watching for its prey (Jer. 5:6), its swiftness (Hab. 1:8), and the spots of its skin (Jer. 13:23), are noticed. This word is used symbolically (Dan. 7:6; Rev. 13:2).