fitch
/fɪtʃ
/noun
1 old-fashioned term for polecat.
1.1 [mass noun] The fur of a polecat.As fashion has readmitted fur, designers have continued to steer clear of old-fashioned pelts, preferring to woo fur virgins with fitch, wolf and coyote.
Origin
Late Middle English (denoting the fur of a polecat): from Middle Dutch visse 'polecat'. Compare with fitchew.