4 letter words:
knop10,
poke10,
puke10,
punk10,
keno8,
kune8,
neuk8,
nuke8,
pepo8,
pope8,
nope6,
open6,
peon6,
pone6,
upon6,
3 letter words:
kep9,
kop9,
ken7,
kue7,
oke7,
pep7,
pop7,
pup7,
uke7,
ope5,
pen5,
pun5,
upo5,
eon3,
one3,
2 letter words:
op4,
pe4,
up4,
en2,
ne2,
no2,
nu2,
oe2,
on2,
un2,