5 letter words:
jupon14,
pronk11,
korun9,
uprun7,
4 letter words:
jouk15,
juku15,
junk15,
jour11,
knop10,
ponk10,
pork10,
pouk10,
puku10,
punk10,
knur8,
koru8,
kuru8,
nork8,
noup6,
porn6,
pour6,
roup6,
upon6,
ourn4,
3 letter words:
jor10,
jun10,
kop9,
kon7,
kor7,
ouk7,
rok7,
oup5,
pro5,
pun5,
pur5,
upo5,
urp5,
nor3,
nur3,
our3,
run3,
urn3,
2 letter words:
jo9,
ko6,
op4,
po4,
up4,
no2,
nu2,
on2,
or2,
ou2,
un2,
ur2,