5 letter words:
cysts10,
tossy8,
costs7,
scots7,
4 letter words:
cozy18,
occy11,
cosy9,
coys9,
cyst9,
soys7,
toys7,
coss6,
cost6,
cots6,
scot6,
socs6,
tocs6,
sots4,
toss4,
3 letter words:
coz14,
zos12,
coy8,
oys6,
soy6,
sty6,
toy6,
yos6,
cos5,
cot5,
soc5,
toc5,
sos3,
sot3,
2 letter words:
zo11,
oy5,
yo5,
os2,
so2,
st2,
to2,