5 letter words:
clour7,
cornu7,
4 letter words:
clon6,
clou6,
corn6,
cour6,
curl6,
curn6,
unco6,
lorn4,
loun4,
lour4,
noul4,
nurl4,
ourn4,
roul4,
3 letter words:
col5,
con5,
cor5,
cru5,
cur5,
orc5,
roc5,
ruc5,
lor3,
lou3,
lur3,
nor3,
nur3,
our3,
run3,
urn3,
2 letter words:
lo2,
no2,
nu2,
on2,
or2,
ou2,
un2,
ur2,