6 letter words:
effort12,
topper10,
5 letter words:
offer11,
preop9,
fetor8,
forte8,
ofter8,
repot7,
toper7,
trope7,
4 letter words:
pfft12,
teff10,
toff10,
prof9,
pepo8,
perp8,
pope8,
prep8,
prop8,
repp8,
fore7,
fort7,
fret7,
froe7,
reft7,
tref7,
pert6,
poet6,
pore6,
port6,
repo6,
rope6,
tope6,
trop6,
rote4,
tore4,
3 letter words:
eff9,
off9,
fop8,
pep7,
pop7,
eft6,
fer6,
fet6,
foe6,
for6,
fro6,
oft6,
ref6,
ope5,
opt5,
per5,
pet5,
pot5,
pro5,
rep5,
top5,
ore3,
ort3,
ret3,
roe3,
rot3,
toe3,
tor3,
2 letter words:
ef5,
fe5,
of5,
op4,
pe4,
er2,
et2,
oe2,
or2,
re2,
to2,