5 letter words:
croft10,
force10,
fetor8,
forte8,
ofter8,
recto7,
4 letter words:
coft9,
corf9,
fore7,
fort7,
fret7,
froe7,
reft7,
tref7,
cero6,
core6,
cote6,
torc6,
rote4,
tore4,
3 letter words:
eft6,
fer6,
fet6,
foe6,
for6,
fro6,
oft6,
ref6,
cor5,
cot5,
orc5,
rec5,
roc5,
ore3,
ort3,
ret3,
roe3,
rot3,
toe3,
tor3,
2 letter words:
ef5,
fe5,
of5,
er2,
et2,
oe2,
or2,
re2,
to2,