Ca·col'o·gy noun [ Greek kako`s bad + -logy : confer French cacologie .] Bad speaking; bad choice or use of words. Buchanan. Found on http://www.encyclo.co.uk/webster/C/3
cacology 1. Bad speaking or pronunciation; bad diction. 2. Defectively produced speech; socially unacceptable diction. 3. A bad choice of words or incorrect pronunciation. Found on http://www.wordinfo.info/words/index/info/view_unit/2422/3