fore·warn 
(fôr-wôrn)
(fôr-wôrn)tr.v. fore·warned, fore·warn·ing, fore·warns
To warn in advance.
- prepare
- preparedly
- preparedness
- preparer
- prepay
- prepayment
- prepend
- prepense
- prepensely
- preponderance
- preponderancy
- preponderant
- preponderantly
- preponderate
- preponderately
- preponderation
- preposition
- preposition
- pre-position
- prepositional
- prepositionally
- prepositional phrase
- prepositive
- prepositively
- prepossess