What does "hottentot" mean?

Hottentot: The language of the Hottentots, which is remarkable for its clicking sounds. Hottentot cherry (Bot.), a South African plant of the genus Cassine (C. maurocenia), having handsome foliage, with generally inconspicuous white or green flowers. Loudon. -- Hottentot's bread. (Bot.) See Elephant's foot (a), under Elephant.