6 letter words:
pumper12,
repump12,
5 letter words:
upper9,
4 letter words:
pump10,
perm8,
perp8,
prem8,
prep8,
repp8,
rump8,
mure6,
puer6,
pure6,
rume6,
3 letter words:
pep7,
pup7,
ump7,
emu5,
meu5,
per5,
pre5,
pur5,
rem5,
rep5,
rum5,
urp5,
rue3,
ure3,
2 letter words:
em4,
me4,
mu4,
pe4,
um4,
up4,
er2,
re2,
ur2,