9 letter words:
unperplex20,
7 letter words:
perplex18,
plexure16,
6 letter words:
luppen10,
peepul10,
prenup10,
pulper10,
purple10,
repulp10,
unreel6,
5 letter words:
expel14,
lurex12,
upper9,
leper7,
neper7,
preen7,
prune7,
puler7,
puree7,
repel7,
rupee7,
enure5,
4 letter words:
plex13,
prex13,
exul11,
luxe11,
ulex11,
peep8,
perp8,
prep8,
pulp8,
repp8,
leep6,
lerp6,
neep6,
peel6,
peen6,
peer6,
pele6,
pene6,
pere6,
pern6,
plue6,
pree6,
puer6,
pule6,
pure6,
purl6,
erne4,
leer4,
lere4,
lune4,
lure4,
nurl4,
reel4,
reen4,
rule4,
rune4,
3 letter words:
lex10,
lux10,
rex10,
pep7,
pup7,
lep5,
nep5,
pee5,
pen5,
per5,
plu5,
pre5,
pul5,
pun5,
pur5,
rep5,
urp5,
eel3,
een3,
ene3,
ere3,
ern3,
lee3,
leu3,
lur3,
nee3,
nur3,
ree3,
ren3,
rue3,
run3,
ule3,
ure3,
urn3,
2 letter words:
ex9,
xu9,
pe4,
up4,
ee2,
el2,
en2,
er2,
ne2,
nu2,
re2,
un2,
ur2,