from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A small, square-cut, frosted and decorated piece of pound cake or sponge cake.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A small cake generally eaten at the end of a meal or served as part of a large buffet.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. small (individual) frosted and ornamented cake
French : petit, little + four, oven.(American Heritage® Dictionary of the English Language, Fourth Edition)
Borrowing from French petit four (literally "small oven"). (Wiktionary)