Scottish: originally an occupational name for an administrative official of an estate, from Middle English stiward, Old English stigweard, stiweard, a compound of stig ‘house(hold)’ + weard ‘guardian’. In Old English times this title was used of an officer controlling the domestic affairs of a household, especially of the royal household; after the Conquest it was also used more widely as the native equivalent of Seneschal for the steward of a manor or manager of an estate. source