grimalkin means A cat, especially an elderly female. Lexicurio rates it Sui generis — a strength score of 91 out of 100.
grimalkin is pronounced /ɡɹɪˈmæl.kɪn/.
Why “grimalkin” is a great word
GRIMALKIN — [Noun] An old female cat, or by extension, a bad-tempered old woman. From the English words 'grey' and 'malkin' (a diminutive of the name Maud, used for a cat or an untidy woman), literally meaning "grey cat" or "grey woman"; first attested in the early 17th century, notably in Shakespeare's "Macbeth" (1605). Unlike a "crone," which suggests purely human malevolence, or a "tabby," a generic domestic cat, a grimalkin is a creature of hybrid menace. She is the rheumy-eyed matriarch hunched on a midnight wall; she is the dry rustle in the attic that is not quite a footfall; she is the unblinking, green-eyed gaze from the hearth that measures your worth—a veteran of silent wars, where spite and survival have become indistinguishable.
noun
- A cat, especially an elderly female.“Servant:..."Commend me unto Titton Tatton and to Puss thy Catton, and tell her that Grimalkin is dead.".”
- A bad-tempered old woman; a crone.