Summary: Prefixes are key morphemes in English vocabulary that begin words. A large number of English vocabulary words contain the prefix *dis-*, which means "apart." Examples using this prefix include [*dis*]tant, [*dis*]ease, and [*dis*]qualify. An easy way to remember that the prefix *dis-* means "apart" is through the word [*dis*]order, for items which are [*dis*]ordered are "apart" from being "ordered," hence are not ordered or are in quite the mess.
