8 letter words:
protopod13,
6 letter words:
troppo10,
5 letter words:
droop8,
dropt8,
poort7,
potoo7,
troop7,
4 letter words:
oppo8,
poop8,
prop8,
dorp7,
drop7,
pood7,
prod7,
poor6,
poot6,
port6,
proo6,
roop6,
topo6,
trop6,
door5,
dort5,
odor5,
ordo5,
rood5,
trod5,
root4,
roto4,
toro4,
3 letter words:
pop7,
dop6,
pod6,
oop5,
opt5,
poo5,
pot5,
pro5,
top5,
doo4,
dor4,
dot4,
ord4,
rod4,
tod4,
oor3,
oot3,
ort3,
roo3,
rot3,
too3,
tor3,
2 letter words:
op4,
po4,
do3,
od3,
oo2,
or2,
to2,