7 letter words:
propria11,
6 letter words:
riprap10,
5 letter words:
prior7,
4 letter words:
prop8,
pair6,
parr6,
prao6,
proa6,
orra4,
roar4,
3 letter words:
app7,
pap7,
pip7,
pop7,
apo5,
par5,
pia5,
poi5,
pro5,
rap5,
rip5,
air3,
oar3,
ora3,
rai3,
ria3,
2 letter words:
op4,
pa4,
pi4,
ai2,
ar2,
oi2,
or2,