finicky

You may be familiar with an advertising campaign featuring Morris, the "finicky" housecat who would only eat a certain brand of cat food. Morris’s tastes in cuisine are not only very particular, but very fine as well, and that’s appropriate given the origin of "finicky." The word came about as an alteration of "finicking," itself an alteration of another adjective, "finical." It’s believed that finical derives from the adjective "fine." "Finicking" also gives us "finick," a somewhat rare verb meaning "to put on airs" or "to dawdle about."