Cat-stane.—"Battle-stone. A monolith in Scotland (sometimes falsely called a Druidical stone). The Norwegian term, banta stein, means the same thing. Celtic—cath (battle)."—Brewer's Dictionary of Phrase and Fable.
Cat-sticks.—Thin legs; compared to the thin sticks with which boys play at cat (Grose).
Catsup or ketchup.—A corruption of the Eastern name of "Kitjap." Is then the syllable "cat" a pun on "kit" or "kitten" (a young cat)? Surely not.
Cattaria.—Nepeta Cattaria. Mentha felina, the herb cat-mint.
Cattery.—A place where cats are kept, the ordinary name when a person keeps a collection of cats.
Cattish.—Having stealthy ways, slow and cautious in movements, watchful.
Catwater. (Plymouth).—"This is a remarkable instance of mistranslation. The castle at the mouth of the Plym used to be called the Château; but some one, thinking it would be better to Anglicise the French, divided the word into two parts: chat (cat), eau (water)."—Brewer's Dictionary of Phrase and Fable.
Catwhin.—Rosa spinosissima. Burnet Rose is the name of the plant.
Cat with two tails.—The earwig. Northumberland; Holloway.
Gil cat.—A male cat; some say an old male. Nares says, an expression exactly analogous to "Jack ass;" the one being formerly called "Gil" or "Gilbert," as commonly as the other "Jack." "Tom cat" is now the usual term, and for a similar reason. "Tibert" is said to be the old French for "Gilbert." From "Tibert," "Tib," "Tibby," also was a common name for a cat. Wilkins, in his "Index to Philosophical Language," has "Gil" (male) cat in the same way as a male cat is called a "Tom" cat. In some counties the cock fowl is called a "Tom." It is unknown whence the origin of the latter term.