"Benne" also appears in some African-American and Caribbean English dialects . I've always seen it attributed to an "African" language: random googling says Wolof, but you probably have access to more and better West African dictionaries than I do.

David Grossman's The Yellow Wind has an account of an Arab village half of which is in the West Bank, and half of which is inside Israel. He asks them if they could be reunited, which side they'd prefer, and they can't come to an agreement. (I'm told there are / were several such villages in the northern West Bank.)

I'm also reminded of the Indo-Bangladesh Enclaves, with one counter-counter-enclave (enclave inside an enclave inside an enclave, I think).