BISHOP is validvalid

to appoint as the head of a diocese [v BISHOPED, BISHOPING, BISHOPS]

16,341 of 196,601 in NWL2023·also valid in CSW24

a senior clergyman in charge of a diocese [n -S] / to fill, or otherwise tamper with, the teeth of a horse, to make it seem younger [v -ED, -ING, -S]