The Collaborative International Dictionary of English v.0.48:

Speke \Speke\, v. i. & t.
   To speak. [Obs.] --Chaucer.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Speke
    n 1: English explorer who with Sir Richard Burton was the first
         European to explore Lake Tanganyika; he also discovered
         Lake Victoria and named it (1827-1864) [syn: Speke, John
         Speke, John Hanning Speke]