9 letter words:
prolonger12,
8 letter words:
prolonge11,
petronel10,
longeron9,
roentgen9,
rotenone8,
7 letter words:
prolong10,
protege10,
peloton9,
prenoon9,
trooper9,
erelong8,
gentler8,
lorgnon8,
rontgen8,
enteron7,
tenoner7,
6 letter words:
groper9,
pongee9,
proleg9,
prolog9,
eloper8,
lepton8,
looper8,
opener8,
operon8,
pelter8,
penner8,
pereon8,
perron8,
perter8,
petrel8,
petrol8,
ponent8,
ponton8,
pooler8,
poorer8,
porter8,
poteen8,
pretor8,
pronto8,
proton8,
reopen8,
repent8,
replot8,
report8,
torpor8,
gentle7,
gentoo7,
gerent7,
longer7,
nonego7,
orgone7,
regent7,
reglet7,
regret7,
tonger7,
trogon7,
enroot6,
lenten6,
looter6,
relent6,
rennet6,
renter6,
rerent6,
retool6,
retore6,
retorn6,
ronnel6,
rooter6,
rootle6,
tenner6,
tonner6,
tooler6,
torero6,
5 letter words:
grope8,
pengo8,
prong8,
repeg8,
elope7,
leper7,
loper7,
netop7,
orlop7,
pelon7,
penne7,
peter7,
pleon7,
poler7,
porno7,
preen7,
prole7,
prone7,
repel7,
repot7,
repro7,
roper7,
topee7,
toper7,
troop7,
trope7,
egret6,
ergot6,
genet6,
genre6,
genro6,
gleet6,
goner6,
green6,
greet6,
leger6,
logon6,
longe6,
ogler6,
roger6,
tenge6,
enrol5,
enter5,
lento5,
leone5,
loner5,
nerol5,
nonet5,
noter5,
orlon5,
relet5,
rente5,
retro5,
rotor5,
tenon5,
tenor5,
terne5,
toner5,
tonne5,
treen5,
trone5,
4 letter words:
glop7,
goop7,
gorp7,
pong7,
prog7,
lept6,
loop6,
lope6,
neep6,
nope6,
open6,
peel6,
peen6,
peer6,
pele6,
pelt6,
pent6,
peon6,
pere6,
pert6,
plot6,
poet6,
pole6,
polo6,
pone6,
pool6,
poon6,
poor6,
pore6,
porn6,
port6,
pree6,
repo6,
rope6,
tope6,
topo6,
trop6,
eger5,
ergo5,
gelt5,
gene5,
gent5,
glee5,
glen5,
goer5,
gone5,
goon5,
gore5,
gree5,
grot5,
loge5,
logo5,
long5,
ogee5,
ogle5,
ogre5,
tong5,
trog5,
enol4,
erne4,
leer4,
leet4,
leno4,
lent4,
lone4,
loon4,
loot4,
lore4,
lorn4,
nene4,
neon4,
noel4,
nolo4,
none4,
noon4,
note4,
oleo4,
onto4,
orle4,
reel4,
rent4,
rete4,
role4,
root4,
rote4,
rotl4,
roto4,
teel4,
teen4,
tele4,
tern4,
tole4,
tone4,
tool4,
toon4,
tore4,
torn4,
toro4,
torr4,
tree4,
3 letter words:
peg6,
lop5,
ope5,
opt5,
pee5,
pen5,
per5,
pet5,
pol5,
poo5,
pot5,
pro5,
rep5,
top5,
ego4,
eng4,
erg4,
gee4,
gel4,
gen4,
get4,
goo4,
gor4,
got4,
leg4,
log4,
neg4,
nog4,
reg4,
teg4,
tog4,
eel3,
eon3,
ere3,
ern3,
err3,
lee3,
let3,
loo3,
lot3,
nee3,
net3,
noo3,
nor3,
not3,
ole3,
one3,
ono3,
oot3,
ore3,
ort3,
ree3,
ret3,
roe3,
rot3,
tee3,
tel3,
ten3,
toe3,
ton3,
too3,
tor3,
2 letter words:
op4,
pe4,
go3,
el2,
en2,
er2,
et2,
lo2,
ne2,
no2,
oe2,
on2,
or2,
re2,
to2,