9 letter words:
perfected17,
8 letter words:
redefect14,
refected14,
7 letter words:
perfect14,
prefect14,
creeped12,
precede12,
erected10,
petered10,
6 letter words:
defect12,
creped11,
refect11,
defter10,
feeder10,
recept10,
reefed10,
refeed10,
decree9,
deeper9,
peered9,
recede9,
5 letter words:
creep9,
crepe9,
crept9,
defer9,
feted9,
freed9,
refed9,
ceder8,
cered8,
creed8,
preed8,
erect7,
peter7,
tepee7,
terce7,
deter6,
treed6,
4 letter words:
cepe8,
deft8,
feed8,
cede7,
cred7,
deep7,
feet7,
fere7,
fete7,
free7,
fret7,
peed7,
reef7,
reft7,
tref7,
cere6,
cete6,
epee6,
peer6,
pere6,
pert6,
pree6,
deer5,
deet5,
dere5,
dree5,
rede5,
reed5,
teed5,
rete4,
tree4,
3 letter words:
cep7,
def7,
fed7,
pec7,
eft6,
fee6,
fer6,
fet6,
ped6,
ref6,
cee5,
pee5,
per5,
pet5,
rec5,
rep5,
dee4,
red4,
ted4,
ere3,
ree3,
ret3,
tee3,
2 letter words:
ef5,
fe5,
pe4,
de3,
ed3,
er2,
et2,
re2,