8 letter words:
protopod13,
5 letter words:
droop8,
dropt8,
troop7,
4 letter words:
poop8,
prop8,
dorp7,
drop7,
pood7,
prod7,
poor6,
port6,
topo6,
trop6,
door5,
odor5,
ordo5,
rood5,
trod5,
root4,
roto4,
toro4,
3 letter words:
pop7,
pod6,
opt5,
poo5,
pot5,
pro5,
top5,
dor4,
dot4,
rod4,
tod4,
oot3,
ort3,
rot3,
too3,
tor3,
2 letter words:
op4,
do3,
od3,
or2,
to2,