6 letter words:
punned9,
5 letter words:
pendu8,
upend8,
unpen7,
4 letter words:
dupe7,
pend7,
dune5,
nude5,
unde5,
3 letter words:
dup6,
ped6,
pud6,
nep5,
pen5,
pun5,
den4,
due4,
dun4,
end4,
ned4,
nun3,
2 letter words:
pe4,
up4,
de3,
ed3,
en2,
ne2,
nu2,
un2,