disincorporate

dis·in·cor·po·rate

D0271600 (dĭs′ĭn-kôr′pə-rāt′)tr. & intr.v. dis·in·cor·po·rat·ed, dis·in·cor·po·rat·ing, dis·in·cor·po·rates To remove or become removed from the status of a corporation: After the city was disincorporated, it was reabsorbed into the township. The county legislators allowed the small city to disincorporate.
dis′in·cor′po·ra′tion n.

disincorporate

(ˌdɪsɪnˈkɔːpəˌreɪt) vb (tr) obsolete to remove from a corporation or society