Why turkey has the same name as Turkey
1868, from French enclave, from Old French enclaver "enclose, comprise, include" (13c.), from Late Latin inclavare "shut in, lock up," from Latin in- "in" (see in- (2)) + clavis "key" (see slot (n.2)). Enclaved "surrounded by land owned by another" is attested in English from mid-15c., from Middle French enclaver.
enclave en·clave (ěn'klāv', ŏn'-)
A detached mass of tissue enclosed in tissue of another kind.