6 letter words:
cooker12,
recook12,
5 letter words:
gecko12,
crook11,
ocker11,
cooer7,
4 letter words:
geck11,
coke10,
cook10,
cork10,
reck10,
rock10,
gook9,
grok9,
kore8,
rook8,
cero6,
core6,
ergo5,
goer5,
gore5,
ogre5,
3 letter words:
keg8,
kor7,
oke7,
cog6,
coo5,
cor5,
orc5,
rec5,
roc5,
ego4,
erg4,
goo4,
gor4,
reg4,
ore3,
roe3,
2 letter words:
go3,
er2,
oe2,
or2,
re2,