word part added at the beginning or end of a word root that changes the word’s meaning
The correct definition of the word prefix is: an affix added at the beginning of a word root.
The definition of the word "prefix" is a word part added at the beginning of a word root that changes the word's meaning. To find the answer to this question, you can read the provided responses and analyze each one. Option (1) states that a prefix is a basic word part that often comes from Greek or Latin. While this is true, it is not the definition of a prefix. Option (2) states that a prefix is an affix added to the end of a word root, which is incorrect as a prefix is added at the beginning, not the end. Option (3) correctly states that a prefix is a word part added at the beginning or end of a word root that changes the word's meaning. Option (4) states that a prefix is an affix added at the beginning, which is the correct definition of a prefix. Therefore, the correct answer is option (4) - "an affix added at the beginning of a word root."
