12 letter words:
prototrophic21,
trophotropic21,
11 letter words:
phototropic20,
orthotropic18,
10 letter words:
orthotopic17,
prototroph17,
9 letter words:
octothorp16,
orthoptic16,
8 letter words:
photopic17,
horopito13,
orthotic13,
poortith13,
7 letter words:
pochoir14,
trophic14,
portico11,
proctor11,
prootic11,
6 letter words:
orphic13,
photic13,
cohort11,
hotpot11,
rhotic11,
thoric11,
trochi11,
trophi11,
octopi10,
ptotic10,
tiptop10,
tropic10,
troppo10,
toroth9,
octroi8,
roopit8,
torpor8,
tricot8,
5 letter words:
chirp12,
hippo12,
pitch12,
pooch12,
porch12,
potch12,
chiro10,
chirr10,
chirt10,
choir10,
chott10,
crith10,
ichor10,
photo10,
richt10,
rotch10,
thorp10,
thrip10,
titch10,
tophi10,
torch10,
coopt9,
optic9,
picot9,
topic9,
ortho8,
thoro8,
tooth8,
troth8,
poori7,
poort7,
potoo7,
potto7,
prior7,
roric7,
topoi7,
toric7,
troop7,
rotor5,
torot5,
trior5,
4 letter words:
chip11,
chop11,
chit9,
coho9,
coth9,
hipt9,
hoop9,
itch9,
phot9,
pith9,
pooh9,
rich9,
roch9,
tich9,
toph9,
coop8,
crop8,
oppo8,
poco8,
poop8,
prop8,
ripp8,
hoot7,
hori7,
thio7,
thir7,
thro7,
toho7,
cito6,
coir6,
coit6,
coot6,
cott6,
crit6,
otic6,
poor6,
poot6,
port6,
pott6,
proo6,
ript6,
roop6,
tipt6,
toco6,
topi6,
topo6,
torc6,
trip6,
trop6,
otto4,
riot4,
ritt4,
root4,
rort4,
roti4,
roto4,
tiro4,
tirr4,
toit4,
toot4,
tori4,
toro4,
torr4,
tort4,
trio4,
trot4,
3 letter words:
chi8,
hic8,
hip8,
hoc8,
hop8,
ich8,
och8,
phi8,
pho8,
pht8,
poh8,
cop7,
pic7,
pip7,
pop7,
hit6,
hoi6,
hoo6,
hot6,
oho6,
ooh6,
rho6,
tho6,
cit5,
coo5,
cor5,
cot5,
oop5,
opt5,
orc5,
pir5,
pit5,
poi5,
poo5,
pot5,
pro5,
rip5,
roc5,
tic5,
tip5,
toc5,
top5,
oor3,
oot3,
ort3,
rit3,
roo3,
rot3,
tit3,
too3,
tor3,
tot3,
2 letter words:
ch7,
hi5,
ho5,
oh5,
op4,
pi4,
po4,
io2,
it2,
oi2,
oo2,
or2,
ti2,
to2,
