focaccia (n.)youdaoicibaDictYouDict[focaccia 词源字典]
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.[focaccia etymology, focaccia origin, 英语词源]