"Coffee made with milk, especially hot or steamed milk; a drink of this; (now) specifically a drink made by adding a shot of espresso to a glass or cup of frothy steamed milk", Mid 19th cent.; earliest use found in The Cultivator: a monthly journal for farm and the garden. From Italian caffè latte (dated 1907 in dictionaries), caffelatte, caffellatte from caffè + latte milk (from classical Latin lac, lact- milk: see lacto-).[caffè latte etymology, caffè latte origin, 英语词源]