Answer:
half-child.
The lines "Your new-caught, sullen peoples, Half-devil and half-child" show ethnocentrism. This line suggests that the people who are being colonized are inferior and uncivilized, and that it is the duty of the colonizers to "civilize" them. This attitude of cultural superiority and the belief that one's own culture is superior to others is a key characteristic of ethnocentrism.