5 letter words:
arpen7,
pareu7,
prune7,
4 letter words:
aper6,
nape6,
neap6,
pane6,
pare6,
pean6,
pear6,
prau6,
puna6,
pure6,
rape6,
reap6,
earn4,
near4,
rune4,
urea4,
3 letter words:
ape5,
nap5,
pan5,
par5,
pea5,
pen5,
per5,
pun5,
pur5,
rap5,
rep5,
urp5,
ane3,
are3,
ear3,
eau3,
era3,
ern3,
nae3,
ran3,
rue3,
run3,
urn3,
2 letter words:
pa4,
pe4,
up4,
ae2,
an2,
ar2,
en2,
er2,
na2,
ne2,
nu2,
re2,
un2,