debank

verb2

1. •
   To deprive a person or organization of banking services, especially for political reasons.

   • Ms Juric said as well as debanking her business, banks had also debanked her personal accounts and the accounts of people she was related to or lived with. — 2021
2. •
   To cease or cause to stop operating as a bank.

   • Oil Company of Texas [was] a company with which the Board had been feuding for two years over its efforts to “debank” its subsidiary bank by purporting to abandon demand deposit-taking. — 1985