5 letter words:
crepy12,
perry10,
pryer10,
ryper10,
4 letter words:
prez15,
prey9,
pyre9,
rype9,
perp8,
prep8,
repp8,
3 letter words:
zep14,
rez12,
cry8,
pry8,
pye8,
yep8,
cep7,
pec7,
pep7,
rye6,
per5,
pre5,
rec5,
rep5,
err3,
2 letter words:
ye5,
pe4,
er2,
re2,