The Collaborative International Dictionary of English v.0.48:
Negritos \Ne*gri"tos\, n. pl.; sing Negrito. [Sp., dim. of negro black.] (Ethnol.) A degraded Papuan race, inhabiting Luzon and some of the other east Indian Islands. They resemble negroes, but are smaller in size. They are mostly nomads. [1913 Webster]