9 letter words:
propeller13,
7 letter words:
peopler11,
proller9,
6 letter words:
lopper10,
people10,
propel10,
proper10,
eloper8,
pollee8,
poller8,
proler8,
repoll8,
reroll6,
roller6,
5 letter words:
opepe9,
preop9,
elope7,
leper7,
loper7,
poler7,
porer7,
prole7,
proll7,
prore7,
repel7,
repro7,
roper7,
lorel5,
oller5,
4 letter words:
peep8,
pepo8,
perp8,
plop8,
poep8,
pope8,
prep8,
prop8,
repp8,
leep6,
lerp6,
lope6,
olpe6,
peel6,
peer6,
pele6,
pell6,
pere6,
pole6,
poll6,
pore6,
pree6,
repo6,
rope6,
eorl4,
leer4,
lere4,
lore4,
orle4,
reel4,
role4,
roll4,
rore4,
3 letter words:
pep7,
pop7,
lep5,
lop5,
ope5,
pee5,
per5,
pol5,
pre5,
pro5,
rep5,
eel3,
ell3,
ere3,
err3,
lee3,
lor3,
ole3,
ore3,
ree3,
reo3,
roe3,
2 letter words:
op4,
pe4,
po4,
ee2,
el2,
er2,
lo2,
oe2,
or2,
re2,