@ loma (sorry i spelled it wrong the first time) and Lizzy, there's a website that does this stuff for you you know?

I'll try anyways:

CONONDRUM

Con
Coon
Corn
Crud
Cum
Cud
Doc
Don
Donor
Doom
Door
Drum
Dun
Duo
Mono
Moo
Mood
Moon
Moor
Mon
Mourn
Mur
Mud
No
Non
Noon
Norm
Nun
On
Or
Orm
Rod
Rum
Un

I'm done. But i know there's tons more.

There's a website, Gimme the link.

Actually NO, i like using my brain. lol

_{P.s I need the link.}

http://www.degraeve.com/subwords.php

you could do a whole bunch of other cool stuff on the site too. like find matching colors e.t.c.
others are complicated though. like coding

Thanks girl, but mehn, i won't think anymore. Okay lets see.

Im smarter than the stupid thing.

Anyways, here goes wat it said.
Mr
ROM
cod
conundrum
cord
corn
cur
do
don
drum
morn
mound
mourn
mud
no
nod
non
nor
norm
noun
nun
on
or
our
rod
round
rum
run
undo
urn

your welcome.

It's obviously not accurate.
I had noon, orm and it didn't have it.
but it helps  \

ooops, . orm isn't a word. but i heard it somewhere. i guess it's an abbreviation then.

planet

net
plan
an
pan
pet
let
ten
nap
lap
pat

i think i can get the 62 words

PLANET:
Plant
Plan
Pale
Pea
Tea
Pane
Lane
Plane
Plate
tap
pat
apt
net
ten
let
lent
pen
pet
pant
tan
ant
pet

22 in 62, ohhhh what a poor mark
Oh! think I've tried

oh yes you tried! great job

I tried it yesterday (even though I did not even realize that a question of such had been posed on Nairaland) and came up with about 38 or 40 words.

planet .

ten
pelt
lean
leapt
pant
plate
net
pan
plan
tea
tan
plea
petal
tape
tap
tale
net
ate
eat
lane
late
nape
ape
pea
pen
nap
neat
plane
pane
pale
pet
tan
ale
ant
leapt
pale

Smart gals full here sha

Plan, net, ten, lane, lent, ent, pant, lane, tan, lean, pet, pan, pen, pale, peal, net, lan, len,

There are Total 88 words made out of this word.

Some Example :
1. Pent
2. Lept
3. Elan
4. Tap
5. Tel

words made out