If you’re filled with prejudice towards a particular person, you have judged her “before” knowing her full story.

Someone who is being precise cuts off all inaccuracies “beforehand” to keep only the exact facts. When you try to prevent something, you come “before” it to put a halt to it, thereby keeping it from happening. A prefix is an affix which is fastened or fixed “before” the primary root or stem of a word.

The word prefix itself has the prefix pre- in it. Today we will focus on the prefix pre-, which means “before.” Prefixes are morphemes which begin words, attaching to a word’s main part, or root, adding to the meaning of the word in some way.