Step-by-step explanation:
deprive (someone) of the right to vote.
"the law disenfranchised some 3,000 voters on the basis of a residence qualification"
deprive (someone) of a right or privilege.
"we strongly oppose any measure which would disenfranchise people from access to legal advice"
ARCHAIC
deprive (someone) of the rights and privileges of a free inhabitant of a borough, city, or country.