Webster's Revised Unabridged Dictionary · 1913

Chinese

Chinese , adjective

Of or pertaining to China; peculiar to China.
Collocations (2)
Chinese paper , See India paper, under India.
Chinese wax , a snowy-white, waxlike substance brought from China. It is the bleached secretion of certain insects of the family Coccida especially Coccus Sinensis.

Chinese , noun, singular and plural

1.
A native or natives of China, or one of that yellow race with oblique eyelids who live principally in China.
2.
The language of China, which is monosyllabic.

Chineses was used as a plural by the contemporaries of Shakespeare and Milton.