7 letter words:
prepreg12,
5 letter words:
repeg8,
4 letter words:
zeze22,
prez15,
geez14,
peep8,
perp8,
prep8,
repp8,
geep7,
peer6,
pere6,
pree6,
eger5,
gere5,
gree5,
3 letter words:
zep14,
rez12,
zee12,
pep7,
peg6,
pee5,
per5,
pre5,
rep5,
erg4,
gee4,
reg4,
ere3,
err3,
ree3,
2 letter words:
pe4,
ee2,
er2,
re2,