5 letter words:
coset7,
coste7,
cotes7,
escot7,
estoc7,
4 letter words:
cose6,
cost6,
cote6,
cots6,
ecos6,
scot6,
seco6,
sect6,
tecs6,
tocs6,
toes4,
tose4,
3 letter words:
cos5,
cot5,
eco5,
sec5,
soc5,
tec5,
toc5,
est3,
oes3,
ose3,
set3,
sot3,
tes3,
toe3,
2 letter words:
es2,
et2,
oe2,
os2,
so2,
st2,
te2,
to2,