The Collaborative International Dictionary of English v.0.48:

Servitor \Serv"i*tor\, n. [L., fr. servire to serve: cf. F.
   serviteur.]
   1. One who serves; a servant; an attendant; one who acts
      under another; a follower or adherent.
      [1913 Webster]

            Your trusty and most valiant servitor. --Shak.
      [1913 Webster]

   2. (Univ. of Oxford, Eng.) An undergraduate, partly supported
      by the college funds, whose duty it formerly was to wait
      at table. A servitor corresponded to a sizar in Cambridge
      and Dublin universities.
      [1913 Webster]

WordNet (r) 3.0 (2006):

servitor
    n 1: someone who performs the duties of an attendant for someone
         else

Easton's 1897 Bible Dictionary:

Servitor
   occurs only in 2 Kings 4:43, Authorized Version (R.V.,
   "servant"). The Hebrew word there rendered "servitor" is
   elsewhere rendered "minister," "servant" (Ex. 24:13; 33:11).
   Probably Gehazi, the personal attendant on Elisha, is here
   meant.