/e/ versus /aU/: 118 pairs

abet about
ate out
bed bowed
befell befoul
bend bound
bended bounded
bending bounding
bends bounds
bet bout
bets bouts
Bren brown
Brens browns
Cheddar chowder
cleanse clowns
debt doubt
debts doubts
den down 
Denny downy
dens downs
Des dhows
etch ouch
expend expound
expended expounded
expending expounding
expends expounds
fell foul
felled fouled
felling fouling
fells fouls
fend found
fended founded
fender founder
fenders founders
fending founding
fends founds
friend frowned
gel jowl
gels jowls
get gout
held howled
hell howl
hells howls
impend impound
impended impounded
impending impounding
impends impounds
jelly jowly
jest joust
jested jousted
jesting jousting
jests jousts
Kent count
Kerry cowrie
ketch couch 
ketches couches 
L owl
lead loud
less louse
let lout
let's louts
L's owls
meant mount
mend mound
mends mounds
merry Maori 
mess mouse
messed moused
messes mouses
messier mousier
messiest mousiest
messing mousing
messy mousy
ness nous
net knout 
nets knouts 
pence pounce
pending pounding
penned pound
pet pout
petted pouted
petting pouting
pled ploughed
Pres prows
read rowed
readier rowdier
readies rowdies
readiest rowdiest
readily rowdily
readiness rowdiness
ready rowdy
rend round
render rounder
renders rounders
rending rounding
rends rounds
res rouse
ret rout
rets routs
retted routed
retting routing
says sows
send sound
sending sounding
senna sauna 
shred shroud
shredded shrouded
shredding shrouding
shreds shrouds
stet stout
ten town
tens towns
unbend unbound
vetches vouches
wend wound
yell yowl
yelled yowled
yelling yowling
yells yowls