The Collaborative International Dictionary of English v.0.48:

Cooly \Coo"ly\, Coolie \Coo"lie\, n.; pl. Coolies. [Hind.
   k?l[imac] a laborer, porter: cf. Turk. k?l, ky?leh, slave.]
   An East Indian porter or carrier; a laborer transported from
   the East Indies, China, or Japan, for service in some other
   country.
   [1913 Webster]