Changes in Lexical Category
Unlike derivational suffixes, English (derivational) prefixes typically do not change the lexical category of the base (and are called class-maintaining prefixes). Thus, the word do consisting of a single morpheme is a verb as is the word redo, which consists of the prefix re- and the base root do.
However, there are a few prefixes in English that are class-changing in that the word resulting after prefixation belongs to a lexical category that is different from the lexical category of the base. Examples of this type include a-, be-, and en-. a- typically creates adjectives from noun and verb bases: blaze (noun/verb) > ablaze (adj). The relatively unproductive be- creates transitive verbs from noun bases: witch (noun) > bewitch (verb). en- creates transitive verbs from noun bases: slave (noun) > enslave (verb)
Read more about this topic: English Prefixes
Famous quotes containing the word category:
“The truth is, no matter how trying they become, babies two and under don’t have the ability to make moral choices, so they can’t be “bad.” That category only exists in the adult mind.”
—Anne Cassidy (20th century)