6 letter words:
puller8,
5 letter words:
prune7,
puler7,
4 letter words:
pule6,
pull6,
pure6,
purl6,
lune4,
lure4,
null4,
nurl4,
rule4,
rune4,
3 letter words:
pen5,
per5,
pul5,
pun5,
pur5,
rep5,
urp5,
ell3,
ern3,
leu3,
rue3,
run3,
urn3,
2 letter words:
pe4,
up4,
el2,
en2,
er2,
ne2,
nu2,
re2,
un2,