6 letter words:
repugn9,
5 letter words:
purge8,
unpeg8,
prune7,
4 letter words:
pung7,
pure6,
genu5,
grue5,
rung5,
urge5,
rune4,
3 letter words:
peg6,
pug6,
pen5,
per5,
pun5,
pur5,
rep5,
urp5,
eng4,
erg4,
gen4,
gnu4,
gun4,
neg4,
reg4,
rug4,
ern3,
rue3,
run3,
urn3,
2 letter words:
pe4,
up4,
en2,
er2,
ne2,
nu2,
re2,
un2,
