by Paul Zollo
lukewarm
microform
misinform
misperform
multiform
norm
outperform
perform
pisiform
platform
preform
prewarm
puriform
rainstorm
reform
reinform
reniform
sandstorm
scutiform
snowstorm
stelliform
storm
styliform
swarm
thunderstorm
transform
uniform
warm
whipworm
windstorm
ORN
acorn
adorn
airborne
alpenhorn
baseborn
bighorn
blackthorn
born
borne
buckthorn
bullhorn
Capricorn
careworn
corn
Dearborn
dehorn
firstborn
foghorn
forborne
foreign-born
foresworn
forewarn
forlorn
forsworn
forworn
freeborn
greenhorn
hawthorn
Hawthorne
highborn
horn
inborn
inkhorn
leghorn
longhorn
lorn
lovelorn
lowborn
morn
mourn
newborn
outworn
overborne
peppercorn
popcorn
porn
pronghorn
reborn
scorn
seaborne
shoehorn
shopworn
shorn
shorthorn
soilborne
stillborn
suborn
sworn
thorn
timeworn
tinhorn
torn
tricorn
twinborn
unborn
unicorn
unshorn
unsworn
unworn
warn
waterborne
wayworn
weatherworn
well-worn
wellborn
worn
ORPS
corpse
thorps
warps
ORS
charley-horse
clotheshorse
coarse
cockhorse
concourse
course
deforce
discourse
divorce
endorse
enforce
force
gorse
hoarse
hobbyhorse
horse
indorse
intercourse
morse
norse
packhorse
perforce
racecourse
racehorse
recourse
reenforce
reinforce
remorse
resource
sawhorse
seahorse
source
telecourse
unhorse
warhorse
watercourse
whitehorse
workhorse
ORT
abort
airport
assort
backcourt
beaufort
bort
bridgeport
carport
cavort
cohort
consort
contort
court
davenport
deport
distort
escort
exhort
export
extort
forecourt
fort
heliport
import
jetport
lawcourt
missort
Newport
passport
port
purport
quart
report
resort
retort
seaport
short
snort
sort
spaceport
spoilsport
sport
support
swart
thwart
tort
torte
transport
wart
worrywart
ORTH
forth
fourth
henceforth
north
orth
thenceforth
ORTS
aborts
airports
assorts
carports
cavorts
cohorts
consorts
contorts
courts
davenports
deports
distorts
escorts
exhorts
exports
extorts
forts
heliports
imports
jetports
missorts
passports
ports
purports
quarts
quartz
reports
resorts
retorts
seaports
shorts
snorts
sorts
spoilsports
sports
supports
thwarts
torts
transports
undershorts
warts
worrywarts
ORZ
abhors
adores
bailors
bedsores
boars
bookstores
boors
boudoirs
brontosaurs
carnivores
centaurs
claymores
commodores
condors
conquistadors
contours
cores
corridors
cuspidors
deplores
dinosaurs
doors
downpours
drawers
drugstores
encores
explores
eyesores
floors
fours
gores
hellebores
herbivores
ignores
implores
indoors
lessors
matadors
memoir
memoirs
mentors
metaphors
moors
oars
ores
outdoors
outscores
overinsures
pinafores
pompadours
pores
prescores
reassures
restores
roars
seashores
semaphores
shores
snores
soars
sophomores
sores
spoors
spores
stegosaurs
stevedores
stores
subfloors
sycamores
toreadors
tours
troubadours
tyrannosaurs
underscores
uproars
wars
whores
yours
Long OS
adios
Barbados
bellicose
boroughs
cellulose
close
comatose
cosmos
dextrose
diagnose
dose
engross
eros
erose
fructose
glucose
grandiose
gross
jocose
ketose
kudos
lactose
Laos
logos
maltose
megadose
misdiagnose
morose
nodose
overdose
pappose
pathos
plumose
raffinose
ramose
rimose
saccharose
sclerose
spinose
sucrose
tiros
varicose
verbose
viscose
xylose
OS
across
albatross
applesauce
backcross
boss
crisscross
cross
dos
doss
double-cross
dross
emboss
ethos
floss
gloss
lacrosse
logos
loss
madras
moss
motocross
pathos
recross
rhinoceros
ringtoss
sauce
semigloss
toss
uncross
OSH
bosh
frosh
galosh
gosh
goulash
Josh
kibosh
mackintosh
panache
posh
quash
slosh
squash
OSK
bosk
kiosk
mosque
Long OST
aftermost
almost
bedpost
boast
bottommost
centermost
coast
coast-to-coast
compost
diagnosed
doorpost
dosed
easternmost
endmost
engrossed
farthermost
fencepost
foremost
furthermost
gatepost
ghost
goalpost
grossed
guidepost
headmost
hindmost
hithermost
host
inmost
innermost
lamppost
lowermost
middlemost
midmost
milepost
milquetoast
misdiagnosed
most
nethermost
northernmost
outboast
outermost
outpost
overdosed
overroast
post
provost
rearmost
riposte
roast
sclerosed
seacoast
signpost
southernmost
toast
topmost
undermost
upmost
uppermost
utmost
uttermost
varicosed
westernmost
OST
accost
bossed
cost
crisscrossed
crossed
defrost
embossed
exhaust
flossed
frost
glossed
hoarfrost
holocaust
lost
pentecost
permafrost
sauced
star-crossed
tossed
uncrossed
Long OT