5 letter words:
preen7,
prune7,
puree7,
rupee7,
enure5,
4 letter words:
prez15,
neep6,
peen6,
peer6,
pere6,
pree6,
pure6,
erne4,
rune4,
3 letter words:
zep14,
zee12,
pee5,
pen5,
per5,
pun5,
pur5,
rep5,
urp5,
ere3,
ern3,
nee3,
ree3,
rue3,
run3,
urn3,
2 letter words:
pe4,
up4,
en2,
er2,
ne2,
nu2,
re2,
un2,