6 letter words:
deepen9,
peened9,
penned9,
5 letter words:
pened8,
penne7,
4 letter words:
deep7,
peed7,
pend7,
epee6,
neep6,
peen6,
pene6,
deen5,
dene5,
need5,
nene4,
3 letter words:
ped6,
nep5,
pee5,
pen5,
dee4,
den4,
end4,
ned4,
een3,
ene3,
nee3,
2 letter words:
pe4,
de3,
ed3,
ee2,
en2,
ne2,