per-
before, in andvance
perapprove
to authorize or give permission or inadvance
percaution
a measure taken in advance to prevent harm
percede
to come before something else in time ,order,or rank
perdict
to say what happens before it occurs
perfix
a syllable or word the comes a root word to change it’s meaning
perjudge
to make a decision before you have all of the facts.
perpay
to pay for something before it need to be paid in full.
pertest
a test before the real test usually given to see what is already known.
pervent
to stop something from happening before it occurs
perview
to look or see something before something or someone else.