6 letter words:
fetors9,
forest9,
fortes9,
foster9,
softer9,
5 letter words:
fetor8,
fores8,
forte8,
forts8,
frets8,
froes8,
frost8,
ofter8,
roset5,
rotes5,
store5,
tores5,
torse5,
4 letter words:
efts7,
fest7,
fets7,
foes7,
fore7,
fort7,
fret7,
froe7,
refs7,
reft7,
serf7,
soft7,
tref7,
eros4,
erst4,
ores4,
orts4,
rest4,
rets4,
roes4,
rose4,
rote4,
rots4,
sore4,
sort4,
toes4,
tore4,
tors4,
tres4,
3 letter words:
efs6,
eft6,
fer6,
fes6,
fet6,
foe6,
for6,
fro6,
oft6,
ref6,
ers3,
oes3,
ore3,
ors3,
ort3,
ose3,
res3,
ret3,
roe3,
rot3,
ser3,
set3,
sot3,
toe3,
tor3,
2 letter words:
ef5,
fe5,
of5,
er2,
es2,
et2,
oe2,
or2,
os2,
re2,
so2,
to2,