5 letter words:
croup9,
clour7,
4 letter words:
clop8,
coup8,
crop8,
curl6,
loup6,
pour6,
purl6,
roup6,
lour4,
3 letter words:
zuz21,
coz14,
cop7,
cup7,
col5,
cor5,
cru5,
cur5,
lop5,
orc5,
pol5,
pro5,
pul5,
pur5,
roc5,
upo5,
urp5,
our3,
2 letter words:
op4,
up4,
lo2,
or2,