niggerize

(transitive, ethnic slur, offensive) To subject to niggerization, (the act of dehumanizing black people, or other people in the manner of black people).

(transitive, ethnic slur, offensive, derogatory) To subject or expose to black people or their influence.

(transitive, ethnic slur, offensive) To render someone or something to resemble the racist stereotype of a black person.

(transitive, dated, now offensive) To treat (wood) with paraffin or coke-oven coal tar in order to increase its acid resistance.