The problem may be that we have simply too many easily confusable words in the English language, and because they’re readily available, we often commit malapropisms.
So what’s a malaprop? An English playwright named Richard Brinsley Sheridan wrote “The Rivals,” featuring a Mrs. Malaprop, whose passion thrived in choosing the wrong word, sometimes a sound-alike. Many people use malaprops for emphasis or for a laugh. Others simply confuse these words with others.