From Longman Dictionary of Contemporary Englishdisenfranchisedis‧en‧fran‧chise /ˌdɪsɪnˈfræntʃaɪz/ verb [transitive] PPVto take away someone’s rights, especially their right to vote —disenfranchisement /-tʃɪzmənt $ -tʃaɪz-/ noun [uncountable]→ See Verb table
Examples from the Corpus
disenfranchise• If you don't get your name on the electoral register you may be disenfranchised.• Nor was it in 1967, when decisions to disenfranchise as well as to enfranchise were a possibility.• Under the new régime we would be the first province to disenfranchise them. 