mer·man 
(mûrmăn′, -mən)
(mûrmăn′, -mən)n.
A legendary sea creature having the head and upper body of a man and the tail of a fish.
[MER(MAID) + MAN.]
- providential
- providentially
- providently
- provider
- providing
- province
- Provincetown
- provincial
- provincialism
- provincialist
- provinciality
- provincialization
- provincialize
- provincially
- proving ground
- proviral
- provirus
- provision
- provisional
- provisionally
- provisioner
- proviso
- provisorily
- provisory
- provitamin