9 letter words:
preceptor15,
8 letter words:
receptor12,
7 letter words:
cropper13,
percept13,
precept13,
porrect11,
erector9,
6 letter words:
copper12,
copter10,
proper10,
recept10,
topper10,
perter8,
porter8,
pretor8,
rector8,
report8,
retore6,
5 letter words:
coper9,
creep9,
crepe9,
crept9,
epopt9,
opepe9,
perce9,
preop9,
corer7,
crore7,
erect7,
opter7,
peter7,
petre7,
porer7,
prore7,
recto7,
repot7,
repro7,
roper7,
terce7,
topee7,
toper7,
trope7,
retro5,
4 letter words:
cepe8,
cope8,
crop8,
peep8,
pepo8,
perp8,
poep8,
pope8,
prep8,
prop8,
repp8,
cere6,
cero6,
cert6,
cete6,
core6,
cote6,
cree6,
peer6,
pere6,
pert6,
poet6,
pore6,
port6,
pote6,
pree6,
repo6,
rope6,
tope6,
torc6,
trop6,
rete4,
rore4,
rort4,
rote4,
teer4,
tore4,
torr4,
tree4,
3 letter words:
cep7,
cop7,
pec7,
pep7,
pop7,
cee5,
cor5,
cot5,
eco5,
ope5,
opt5,
orc5,
pee5,
per5,
pet5,
pot5,
pre5,
pro5,
rec5,
rep5,
roc5,
tec5,
toc5,
top5,
ere3,
err3,
ore3,
ort3,
ree3,
reo3,
ret3,
roe3,
rot3,
tee3,
toe3,
tor3,
2 letter words:
op4,
pe4,
po4,
ee2,
er2,
et2,
oe2,
or2,
re2,
te2,
to2,