(1):
(n.) An innkeeper. [Obs.] See Hosteler.
(2):
(n.) The person who has the care of horses at an inn or stable; hence, any one who takes care of horses; a groom; - so called because the innkeeper formerly attended to this duty in person.
(3):
(n.) The person who takes charge of a locomotive when it is left by the engineer after a trip.