Sydney Stewart

(female), (male) Variant spelling of Sidney. (It was a medieval practice to write y for i, for greater clarity since i was easily confused with other letters.) Although traditionally a boy's name, it suddenly came into fashion as a girl's name at the beginning of the 21st century and, in this form, is now used more frequently for girls than boys in England and North America.

Scottish: originally an occupational name for an administrative official of an estate, from Middle English stiward, Old English stigweard, stīweard, 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.