"As fair Grimalkin, who, though the youngest of the feline family"

Public DomainGrimalkin - Credit: Kerri
A grimalkin is an old or evil-looking female cat.  The term stems from grey (the color) and "malkin", an archaic term for a cat.  Scottish legend makes reference to the grimalkin as a faery cat which dwells in the highlands.  The name may have originated with Beware the Cat (published 1570) by William Baldwin, a novel about talking cats.  Part of it relates the story of the Grimalkin's death. During 16th to 18th centuries, the name grimalkin - and cats in general - became associated with the devil and witchcraft.