7 letter words:
colorer9,
recolor9,
6 letter words:
cooler8,
5 letter words:
ceorl7,
color7,
cooer7,
corer7,
crore7,
4 letter words:
cero6,
cole6,
cool6,
core6,
loco6,
lore4,
oleo4,
orle4,
role4,
3 letter words:
cel5,
col5,
coo5,
cor5,
orc5,
rec5,
roc5,
err3,
loo3,
ole3,
ore3,
roe3,
2 letter words:
el2,
er2,
lo2,
oe2,
or2,
re2,