The Collaborative International Dictionary of English v.0.48:
Mispronounce \Mis`pro*nounce"\, v. t. & i. [imp. & p. p. Mispronounced; p. pr. & vb. n. Mispronouncing.] To pronounce incorrectly. [1913 Webster]WordNet (r) 3.0 (2006):
mispronounce v 1: pronounce a word incorrectly; "She mispronounces many Latinate words" [syn: mispronounce, misspeak]