7 letter words:
proette9,
treetop9,
6 letter words:
fetter9,
petter8,
potter8,
5 letter words:
fetor8,
forte8,
ofter8,
peter7,
petto7,
repot7,
topee7,
toper7,
trope7,
otter5,
rotte5,
torte5,
toter5,
4 letter words:
prof9,
feet7,
fere7,
fete7,
fore7,
fort7,
free7,
fret7,
froe7,
reef7,
reft7,
toft7,
tref7,
peer6,
pere6,
pert6,
poet6,
pore6,
port6,
pree6,
repo6,
rope6,
tope6,
trop6,
rete4,
rote4,
tore4,
tort4,
tote4,
tree4,
tret4,
trot4,
3 letter words:
fop8,
eft6,
fee6,
fer6,
fet6,
foe6,
for6,
fro6,
oft6,
ref6,
ope5,
opt5,
pee5,
per5,
pet5,
pot5,
pro5,
rep5,
top5,
ere3,
ore3,
ort3,
ree3,
ret3,
roe3,
rot3,
tee3,
tet3,
toe3,
tor3,
tot3,
2 letter words:
ef5,
fe5,
of5,
op4,
pe4,
er2,
et2,
oe2,
or2,
re2,
to2,