from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The mispronunciation of words:
From Ancient Greek κακός (kakos, "bad") + ἔπος (epos, "word"). (Wiktionary)
Chambers gives several interesting words with the caco - root, eg "cacoepy", bad pronunciation, "cacology", also bad pronunciation and bad choice of words as well.