Deniggerize

A broad spectrum of African-Americans have used education to deniggerize themselves […]

Source: wiktionary

But Al had accused Holly of going beyond the wishing to live the delusion that she had escaped the trap of blackness and had become an adored equal in a racist white world that considered her deniggerized and no longer tainted […]

Source: wiktionary

Included in Killens's attempt to change or deniggerize the world was a continual verbal assault on literary, media, and educational establishments relative to their collectively abysmal record of promoting positive Black images.

Source: wiktionary

In some areas black schools were integrated only after insulting efforts to 'deniggerize' the school were carried out (replacement of all toilet seats, fumigation of the school, etc.

Source: wiktionary