8 letter words:
congenic13,
6 letter words:
coigne9,
coning9,
conine8,
5 letter words:
conic9,
cogie8,
coign8,
conge8,
genic8,
incog8,
conin7,
conne7,
nonce7,
ennog6,
4 letter words:
ecco8,
cine6,
cion6,
coin6,
cone6,
coni6,
conn6,
icon6,
nice6,
once6,
gien5,
ginn5,
gone5,
ingo5,
nong5,
neon4,
nine4,
none4,
noni4,
onie4,
3 letter words:
cig6,
cog6,
con5,
eco5,
ice5,
ego4,
eng4,
gen4,
geo4,
gie4,
gin4,
gio4,
goe4,
gon4,
neg4,
nog4,
eon3,
inn3,
ion3,
nie3,
non3,
one3,
2 letter words:
gi3,
go3,
en2,
in2,
io2,
ne2,
no2,
oe2,
oi2,
on2,
