5 letter words:
casco9,
cocas9,
cosec9,
secco9,
4 letter words:
ceca8,
coca8,
ecco8,
aces6,
aesc6,
case6,
ceas6,
cose6,
ecos6,
ocas6,
seco6,
soca6,
3 letter words:
ace5,
cos5,
eco5,
oca5,
sac5,
sec5,
soc5,
eas3,
oes3,
ose3,
sae3,
sea3,
2 letter words:
ae2,
as2,
ea2,
es2,
oe2,
os2,
so2,