6 letter words:
grocer9,
5 letter words:
cerge8,
grece8,
corer7,
crore7,
roger6,
4 letter words:
crog7,
cere6,
cero6,
core6,
cree6,
eger5,
ergo5,
gere5,
goer5,
gore5,
gree5,
ogee5,
ogre5,
rego5,
rore4,
3 letter words:
cog6,
cee5,
cor5,
eco5,
orc5,
rec5,
roc5,
ego4,
erg4,
gee4,
geo4,
goe4,
gor4,
reg4,
ere3,
err3,
ore3,
ree3,
reo3,
roe3,
2 letter words:
go3,
ee2,
er2,
oe2,
or2,
re2,