When certain segments of the population are deprived of their right to vote or of a position of power in society, this is an example of a time when you disenfranchise that segment of society.
transitive verb-·chised·, -·chis·ing
- to deprive of the rights of citizenship, esp. of the right to vote
- to deprive of a privilege, right, or power
transitive verbdis·en·fran·chised, dis·en·fran·chis·ing, dis·en·fran·chis·es
(third-person singular simple present disenfranchises, present participle disenfranchising, simple past and past participle disenfranchised)
From dis- + enfranchise
disenfranchise - Legal Definition