Merriam-Webster Collegiate Dictionary - cookie

 or cooky  noun  (plural ~s)  Etymology: Dutch koekje, diminutive of koek cake  Date: 1703  1. a small flat or slightly raised cake  2.  a. an attractive woman a buxom French ~ who haunts the…colony's one night spot — Newsweek  b. person, guy a tough ~  3. (~) a small file or part of a file stored on a World Wide Web user's computer, created and subsequently read by a Web site server, and containing personal information (as a user identification code, customized preferences, or a record of pages visited)