Explanation:
A prefix is an affix which is placed before the stem of a word. Adding it to the beginning of one word changes it into another word. For example, when the prefix un- is added to the word happy, it creates the word unhappy.
at the beginning
Answer:
At the beginning of the word.
Explanation:
For example: impossible
The pre-fix is im
The base word is possible
Im means not, therefore impossible means not possible
