Strong's 3623 (οἰκονόμος)

chamberlain, governor, steward

a house-distributor (i.e. manager), or overseer, i.e. an employee in that capacity; by extension, a fiscal agent (treasurer); figuratively, a preacher (of the Gospel)

from G3624 (οἶκος) and the base of G3551 (νόμος);