12 letter words:
pregnenolone15,
8 letter words:
prolonge11,
neoprene10,
longeron9,
nongreen9,
7 letter words:
epergne10,
prolong10,
prenoon9,
erelong8,
lorgnon8,
neogene8,
6 letter words:
peenge9,
plonge9,
pogoer9,
pongee9,
proleg9,
prolog9,
eloper8,
looper8,
opener8,
operon8,
peeler8,
penner8,
pennon8,
pereon8,
perone8,
pooler8,
reopen8,
repone8,
engore7,
gennel7,
lenger7,
longer7,
nonego7,
orgone7,
orogen7,
renege7,
rognon7,
nooner6,
ronnel6,
5 letter words:
gloop8,
golpe8,
grope8,
pengo8,
plong8,
pongo8,
porge8,
prong8,
repeg8,
elope7,
elpee7,
leper7,
loper7,
neper7,
orlop7,
pelon7,
penne7,
pleon7,
poler7,
porno7,
preen7,
prole7,
prone7,
repel7,
eloge6,
ennog6,
ergon6,
gelee6,
genre6,
genro6,
gerle6,
gerne6,
goner6,
green6,
grone6,
leger6,
logon6,
longe6,
negro6,
ogler6,
enrol5,
leone5,
loner5,
neele5,
nerol5,
orlon5,
renne5,
roneo5,
ronne5,
4 letter words:
geep7,
glop7,
golp7,
goop7,
gorp7,
pogo7,
pong7,
prog7,
epee6,
leep6,
lerp6,
loop6,
lope6,
neep6,
noop6,
nope6,
olpe6,
open6,
peel6,
peen6,
peer6,
pele6,
pene6,
peon6,
pere6,
pern6,
pole6,
polo6,
pone6,
pool6,
poon6,
poor6,
pore6,
porn6,
pree6,
proo6,
repo6,
roop6,
rope6,
eger5,
ergo5,
gene5,
gere5,
glee5,
glen5,
goel5,
goer5,
gole5,
gone5,
gool5,
goon5,
goor5,
gore5,
gree5,
gren5,
leng5,
loge5,
logo5,
long5,
nong5,
ogee5,
ogle5,
ogre5,
rego5,
rong5,
enol4,
eorl4,
erne4,
leer4,
leno4,
lere4,
lone4,
loon4,
loor4,
lore4,
lorn4,
nene4,
neon4,
noel4,
nole4,
nolo4,
none4,
noon4,
oleo4,
oner4,
orle4,
reel4,
reen4,
role4,
rone4,
roon4,
3 letter words:
peg6,
lep5,
lop5,
nep5,
oop5,
ope5,
pee5,
pen5,
per5,
pol5,
poo5,
pre5,
pro5,
rep5,
ego4,
eng4,
erg4,
gee4,
gel4,
gen4,
geo4,
goe4,
gon4,
goo4,
gor4,
leg4,
log4,
neg4,
nog4,
reg4,
eel3,
een3,
ene3,
eon3,
ere3,
ern3,
lee3,
loo3,
lor3,
nee3,
non3,
noo3,
nor3,
ole3,
one3,
ono3,
oon3,
oor3,
ore3,
ree3,
ren3,
reo3,
roe3,
roo3,
2 letter words:
op4,
pe4,
po4,
go3,
ee2,
el2,
en2,
er2,
lo2,
ne2,
no2,
oe2,
on2,
oo2,
or2,
re2,