5 letter words:
gripe8,
repeg8,
4 letter words:
grip7,
prig7,
peer6,
pere6,
peri6,
pier6,
pree6,
ripe6,
eger5,
gree5,
3 letter words:
gip6,
peg6,
pig6,
pee5,
per5,
pie5,
rep5,
rip5,
erg4,
gee4,
gie4,
reg4,
rig4,
ere3,
ire3,
ree3,
rei3,
2 letter words:
pe4,
pi4,
er2,
re2,