5 letter words:
gecko12,
icker11,
ocker11,
corgi8,
orgic8,
4 letter words:
geck11,
coke10,
cork10,
reck10,
rick10,
rock10,
grok9,
keir8,
kier8,
kore8,
cero6,
cire6,
coir6,
core6,
rice6,
ergo5,
giro5,
goer5,
gore5,
ogre5,
3 letter words:
ick9,
keg8,
irk7,
kir7,
koi7,
kor7,
oke7,
cig6,
cog6,
cor5,
ice5,
orc5,
rec5,
roc5,
ego4,
erg4,
gie4,
gor4,
reg4,
rig4,
ire3,
ore3,
rei3,
roe3,
2 letter words:
ki6,
go3,
er2,
oe2,
oi2,
or2,
re2,