6 letter words:
pooper10,
5 letter words:
preop9,
4 letter words:
oppo8,
pepo8,
perp8,
poep8,
poop8,
pope8,
prep8,
prop8,
repp8,
poor6,
pore6,
proo6,
repo6,
roop6,
rope6,
3 letter words:
pep7,
pop7,
oop5,
ope5,
per5,
poo5,
pre5,
pro5,
rep5,
oor3,
ore3,
reo3,
roe3,
roo3,
2 letter words:
op4,
pe4,
po4,
er2,
oe2,
oo2,
or2,
re2,
