Enfranchise (en FRAN chize) v: to grant the privileges of citizenship, especially the right to vote
In the United States, citizens become enfranchised on their eighteenth birthdays.
American women were not enfranchised until the adoption of the Nineteenth Amendment in 1920 which gave them the right to vote.
To disfranchise (not disenfranchise) someone is to take away the privileges of citizenship or take away the right to vote. One of the goals of the reform candidate was to disfranchise the bodies at the cemetery, which had had a habit of voting for the crooked mayor.