• (n.) The quality of being paronymous; also, the use of paronymous words.
Pa·ron'y·my noun The quality of being paronymous; also, the use of paronymous words. 
paronym, paronymy 1. A word from the same root, and usually a similar pronunciation, as another; such as, 'beautiful' and 'beauteous'. 2. Words which are almost homonyms, but have slight differences in spelling and have different meanings. 3. Having a similar sound, but different orthography and different meaning; said of certain words, as 'all' ...