chaplain
Concise Oxford English Dictionary © 2008 Oxford University Press:
chaplain/ˈtʃaplɪn/
▶noun a member of the clergy attached to a private chapel, institution, regiment, etc.
– derivatives
chaplaincy noun.
chaplaincy noun.
– origin ME: from OFr. chapelain, from med. L. cappellanus, orig. denoting a custodian of the cloak of St Martin, from cappella (see chapel).
'chaplain' also found in these Oxford entries:

