How we change what others think, feel, believe and do
Metathesis is the rearrangement of letters within a word.
He frevently plied his ardour.
That is not revelant.
You're a carzy driver!
Rearranging letters in words can be done for effect. There are also some words where this is commonly done in error.
Interestingly, you can rearrange all the letters in each word in a sentence and still make sense of it.
Ilngtretisney, yuo cna rarerargne lal teh ltetres ni ecah wrod ni a scenntee adn slitl mkae snese fo ti.
..although keeping the first and last letters of most words in place helps the process. Nevertheless it shows how metathesis is not that obfuscating.