Chinese (adj.) Look up Chinese at Dictionary.com
1570s, from China + -ese. As a noun from c.1600. Chinee (n.) is a vulgar back-formation from this word on the mistaken notion that the word is a plural. As an adjective, Chinish also was used 16c. Chinese fire-drill "chaotic situation of many people rushing around futilely" is attested by 1962, U.S. military slang, perhaps with roots in World War II U.S. Marine Corps slang. The game Chinese checkers is attested from 1938.