9 letter words:
upcurving17,
7 letter words:
curving13,
6 letter words:
curing9,
urping9,
5 letter words:
cuing8,
incur7,
purin7,
runic7,
unrip7,
ruing6,
unrig6,
4 letter words:
grip7,
ping7,
prig7,
pung7,
curn6,
pirn6,
puri6,
unci6,
uric6,
girn5,
grin5,
guru5,
ring5,
rung5,
ruin4,
3 letter words:
cup7,
guv7,
pic7,
vig7,
vug7,
cig6,
gip6,
pig6,
pug6,
cru5,
cur5,
nip5,
pin5,
piu5,
pun5,
pur5,
rip5,
urp5,
gin4,
gnu4,
gun4,
rig4,
rug4,
rin3,
run3,
urn3,
2 letter words:
pi4,
up4,
in2,
nu2,
un2,