6 letter words:
offset12,
setoff12,
5 letter words:
teffs11,
toffs11,
4 letter words:
effs10,
offs10,
teff10,
toff10,
efts7,
fest7,
fets7,
foes7,
soft7,
tefs7,
toes4,
tose4,
3 letter words:
eff9,
off9,
efs6,
eft6,
fes6,
fet6,
foe6,
oft6,
tef6,
est3,
oes3,
ose3,
set3,
sot3,
tes3,
toe3,
2 letter words:
ef5,
fe5,
of5,
es2,
et2,
oe2,
os2,
so2,
st2,
te2,
to2,