10 letter words:
prolonging14,
9 letter words:
prologing13,
8 letter words:
pronging12,
7 letter words:
groping11,
ponging11,
looping10,
pooling10,
prolong10,
longing9,
ongoing9,
glonoin8,
lorgnon8,
6 letter words:
loping9,
poling9,
pooing9,
poring9,
prolog9,
roping9,
gigolo8,
gorgon8,
goring8,
gringo8,
noggin8,
ogling8,
gonion7,
logion7,
looing7,
olingo7,
ronion6,
5 letter words:
gipon8,
oping8,
pingo8,
pirog8,
prong8,
going7,
orlop7,
orpin7,
pinon7,
polio7,
poori7,
porno7,
prion7,
giron6,
groin6,
igloo6,
lingo6,
login6,
logoi6,
logon6,
onion5,
orlon5,
4 letter words:
glop7,
goop7,
gorp7,
grip7,
ping7,
pong7,
prig7,
prog7,
gogo6,
gong6,
grig6,
grog6,
loop6,
nogg6,
pion6,
pirn6,
polo6,
pool6,
poon6,
poor6,
porn6,
girl5,
girn5,
giro5,
goon5,
grin5,
ling5,
logo5,
long5,
ring5,
inro4,
iron4,
linn4,
lino4,
lion4,
loin4,
loon4,
lorn4,
noil4,
noir4,
nolo4,
noon4,
nori4,
olio4,
roil4,
3 letter words:
gip6,
pig6,
gig5,
igg5,
lip5,
lop5,
nip5,
pin5,
poi5,
pol5,
poo5,
pro5,
rip5,
gin4,
goo4,
gor4,
log4,
nog4,
rig4,
inn3,
ion3,
lin3,
loo3,
nil3,
noo3,
nor3,
oil3,
ono3,
rin3,
2 letter words:
op4,
pi4,
go3,
in2,
li2,
lo2,
no2,
oi2,
on2,
or2,