A prefix is a word part added to the beginning of a word to create a word with a different meaning.
Examples : refill , undo, incomplete, precooked
The definition of the prefix sub is: Under or less than.
Para is the prefix best fitting the definition of beside.
The prefix that fits the definition of backward or back is "re-".
the prefix plu means more
Indefinite
The prefix that fits the definition of pseudoscience is "pseudo-", which means false or not genuine.
good
butts
Its I'am.
Measure
within
look