stew·ard 
(stərd, sty-)
(stərd, sty-)n.
1. One who manages another's property, finances, or other affairs.
2. One who is in charge of the household affairs of a large estate, club, hotel, or resort.
3. A ship's officer who is in charge of provisions and dining arrangements.
4. An attendant on a ship or airplane.
5. An official who supervises or helps to manage an event.
6. A shop steward.
7. A wine steward.
intr. & tr.v. stew·ard·ed, stew·ard·ing, stew·ards
To serve as a steward or as the steward of.
[Middle English, from Old English stigweard, stīward : stig, stī, hall + weard, keeper; see wer-3 in the Appendix of Indo-European roots.]
steward·ship′ n.