7 letter words:
purging11,
6 letter words:
puring9,
urping9,
gruing8,
urging8,
5 letter words:
purin7,
unrip7,
ruing6,
unrig6,
4 letter words:
grip7,
ping7,
prig7,
pung7,
ging6,
grig6,
gung6,
pirn6,
puir6,
puri6,
rigg6,
girn5,
grin5,
gurn5,
ring5,
rung5,
ruin4,
3 letter words:
gip6,
gup6,
pig6,
pug6,
gig5,
igg5,
nip5,
pin5,
pir5,
piu5,
pun5,
pur5,
rip5,
urp5,
gin4,
gnu4,
gun4,
gur4,
rig4,
rug4,
nur3,
rin3,
run3,
uni3,
urn3,
2 letter words:
pi4,
up4,
gi3,
gu3,
ug3,
in2,
nu2,
un2,
ur2,