5 letter words:
proof10,
4 letter words:
frap9,
poof9,
prof9,
faro7,
fora7,
roof7,
parr6,
poor6,
prao6,
proa6,
orra4,
roar4,
3 letter words:
fop8,
arf6,
far6,
for6,
fro6,
oaf6,
apo5,
par5,
poo5,
pro5,
rap5,
oar3,
ora3,
2 letter words:
fa5,
of5,
op4,
pa4,
ar2,
or2,