The Collaborative International Dictionary of English v.0.48:

Hottentot \Hot"ten*tot\, n. [D. Hottentot; -- so called from hot
   and tot, two syllables of frequent occurrence in their
   language. --Wedgwood.]
   1. (Ethnol.) One of a degraded
      [1913 Webster]

   2. The language of the Hottentots, which is remarkable for
      its clicking sounds; the Khoisan language.
      [1913 Webster +PJC]

   Hottentot cherry (Bot.), a South African plant of the genus
      Cassine (Cassine maurocenia), having handsome foliage,
      with generally inconspicuous white or green flowers.
      --Loudon.

   Hottentot's bread. (Bot.) See Elephant's foot
      (a), under Elephant.
          [1913 Webster]

WordNet (r) 3.0 (2006):

Khoisan
    n 1: a family of languages spoken in southern Africa [syn:
         Khoisan, Khoisan language]