6 letter words:
punker12,
punner8,
5 letter words:
puker11,
prune7,
unpen7,
4 letter words:
penk10,
perk10,
puke10,
punk10,
kern8,
knur8,
kune8,
nerk8,
neuk8,
nuke8,
renk8,
pern6,
puer6,
pure6,
rune4,
3 letter words:
kep9,
erk7,
euk7,
ken7,
kue7,
nek7,
uke7,
nep5,
pen5,
per5,
pre5,
pun5,
pur5,
rep5,
urp5,
ern3,
nun3,
nur3,
ren3,
rue3,
run3,
ure3,
urn3,
2 letter words:
pe4,
up4,
en2,
er2,
ne2,
nu2,
re2,
un2,
ur2,