9 letter words:
perplexer20,
7 letter words:
perplex18,
reexpel16,
6 letter words:
peeper10,
peeler8,
reeler6,
5 letter words:
expel14,
peepe9,
elpee7,
leper7,
repel7,
4 letter words:
plex13,
prex13,
peep8,
perp8,
prep8,
repp8,
epee6,
leep6,
lerp6,
peel6,
peer6,
pele6,
pere6,
pree6,
leer4,
lere4,
reel4,
3 letter words:
lex10,
rex10,
pep7,
lep5,
pee5,
per5,
pre5,
rep5,
eel3,
ere3,
err3,
lee3,
ree3,
2 letter words:
ex9,
pe4,
ee2,
el2,
er2,
re2,