gorgonzola

the word 'gorgonzola' is a direct borrowing from italian, named after the small town of gorgonzola near milan, where the cheese is traditionally said to have originated. the town's name itself is of uncertain etymology but may derive from a late latin personal name. as a common linguistic process, the place name became a product name, a phenomenon known as toponymic derivation. the term entered english in the late 19th century, retaining its italian spelling and pronunciation, to refer specifically to this distinctive blue-veined cheese.

this is a toponym, a word derived from a place name. it does not contain separable morphemes in the modern english sense.