camistern.
Etymology: < camis n. in sense ‘surplice’ (? termination suggested by minister).Previous versions of the OED give the stress as: ˈcamister.
Thieves' cant.
1851 H. Mayhew I. 217/2 Camister, Minister.
This entry has not yet been fully updated (first published 1888; most recently modified version published online March 2021).