focaccia (n.) Look up focaccia at Dictionary.com
by 1994, from Italian focaccia, from Late Latin focacia, fem. of focacius, used of breads baked under the ashes, from Latin focus "hearth, fireplace" (see focus (n.)). Cognate with Spanish hogaza, Old French foace "griddle cake" (Modern French fouasse "a cake, bun"), Provençal fogassa.