14 letter words:
nonengineering16,
11 letter words:
engineering13,
8 letter words:
engining10,
greening10,
grinning10,
groining10,
ignoring10,
reigning10,
reneging10,
engineer9,
nongreen9,
7 letter words:
engorge9,
ginning9,
girning9,
greeing9,
ingoing9,
ringing9,
ginnier8,
greenie8,
ironing8,
negroni8,
neogene8,
reining8,
rinning8,
6 letter words:
geeing8,
gieing8,
ginger8,
goring8,
greige8,
gringo8,
nigger8,
noggin8,
engine7,
eringo7,
ginner7,
ignore7,
inning7,
origin7,
region7,
renege7,
rennin6,
5 letter words:
egger7,
going7,
gorge7,
grego7,
genie6,
genii6,
genre6,
genro6,
giron6,
goner6,
green6,
groin6,
iring6,
reign6,
renig6,
eerie5,
inion5,
inner5,
irone5,
ninon5,
renin5,
4 letter words:
gong6,
grig6,
grog6,
nogg6,
eger5,
ergo5,
gene5,
gien5,
girn5,
giro5,
goer5,
gone5,
gore5,
gree5,
grin5,
ogee5,
ogre5,
ring5,
erne4,
inro4,
iron4,
nene4,
neon4,
nine4,
noir4,
none4,
nori4,
rein4,
3 letter words:
egg5,
gig5,
igg5,
ego4,
eng4,
erg4,
gee4,
gen4,
gie4,
gin4,
gor4,
neg4,
nog4,
reg4,
rig4,
eon3,
ere3,
ern3,
inn3,
ion3,
ire3,
nee3,
nor3,
one3,
ore3,
ree3,
rei3,
rin3,
roe3,
2 letter words:
go3,
en2,
er2,
in2,
ne2,
no2,
oe2,
oi2,
on2,
or2,
re2,