1) Attendant 2) Attender 3) Butler or waiter 4) Tender 1) Maid 2) Servant 
In certain universities (including some colleges of University of Oxford and the University of Edinburgh), a servitor was an undergraduate student who received free accommodation (and some free meals), and was exempted from paying fees for lectures. The term is still used in New College, School of Divinity, University of Edinburgh where it refers ...
one who serves; clerk or assistant; adherent
Serv'i·tor noun [ Latin , from servire to serve: confer French serviteur .] 1. One who serves; a servant; an attendant; one who acts under another; a follower or adherent. « Your trusty and most valiant servitor .» Shak. 2. (Univ. of Oxfor...
a person engaged in state service; a forerunner of the dvoryanstvo
[n] - someone who performs the duties of an attendant for someone else
servitor 1. A servant or attendant. 2. A (male) personal or domestic attendant (in early use chiefly, one who waited at a table); a man-servant.
noun someone who performs the duties of an attendant for someone else