Chaplain
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
An ecolesiastic who performs divine service in a chapel; but it more commonly means one who attends upon a king, prince or other person of quality, for the performance of clerical duties in a private chapel.
4 Coke, 90.
A clergyman officially attached to a ship of war, to an army, (or regiment,) or to some public institution, fpr the purpose of performing divine service.
Webster.