8 letter words:
poltroon10,
7 letter words:
rooftop12,
fronton10,
nonpoor9,
pontoon9,
6 letter words:
ponton8,
pronto8,
proton8,
5 letter words:
proof10,
floor8,
front8,
orlop7,
porno7,
troop7,
orlon5,
4 letter words:
flop9,
poof9,
prof9,
font7,
fool7,
foot7,
fort7,
loft7,
loof7,
rolf7,
roof7,
loop6,
plot6,
polo6,
pool6,
poon6,
poor6,
porn6,
port6,
topo6,
trop6,
loon4,
loot4,
lorn4,
nolo4,
noon4,
onto4,
root4,
rotl4,
roto4,
tool4,
toon4,
torn4,
toro4,
3 letter words:
fop8,
fon6,
for6,
fro6,
oft6,
lop5,
opt5,
pol5,
poo5,
pot5,
pro5,
top5,
loo3,
lot3,
noo3,
nor3,
not3,
ono3,
oot3,
ort3,
rot3,
ton3,
too3,
tor3,
2 letter words:
of5,
op4,
lo2,
no2,
on2,
or2,
to2,