6 letter words:
coring9,
5 letter words:
coign8,
corgi8,
incog8,
orgic8,
corni7,
orcin7,
giron6,
groin6,
4 letter words:
crog7,
cion6,
coin6,
coir6,
coni6,
corn6,
icon6,
girn5,
giro5,
gori5,
grin5,
ingo5,
ring5,
rong5,
inro4,
iron4,
noir4,
nori4,
roin4,
3 letter words:
cig6,
cog6,
con5,
cor5,
orc5,
roc5,
gin4,
gio4,
gon4,
gor4,
nog4,
rig4,
ion3,
nor3,
rin3,
2 letter words:
gi3,
go3,
in2,
io2,
no2,
oi2,
on2,
or2,
