Prefixes are a group of letters that change the meaning of a word when they are added to the start. The prefix un- usually means 'not', so the new word means the opposite of the original. In this ...

Words were also considered from the lexicons of economics (freemium), politics and current affairs (teabagger), environment (brown state) as well as novelty words like ‘deleb’ and ‘tramp stamp.’ ‘Un-‘ ...