Answer the following questions. Your answers should be clear and short.What is prefixation? Give an example to illustrate your point.
PREFIXATION IS THE FORMATION OF NEW WORDS BY ADDING PREFIXES TO STEMS. PREFIXES DON'T GENERALLY CHANGE THE WORD CLASS OF THE STEM; BUT ONLY MODIFY ITS MEANING. FOR EXAMPLE, "OBEY" IS A VERB, WHICH MEANS "TO CARRY OUT THE ORDER" WHILE "DISOBEY" IS ALSO A VERB, WHICH MEANS "NOT TO CARRY OUT THE ORDER". "OBEY" AND "DISOBEY" HAVE THE SAME PART OF SPEECH, BUT DIFFERENT MEANINGS. 
