10 letter words:
idiopathic18,
7 letter words:
aphotic14,
ophitic14,
poditic12,
idiotic10,
6 letter words:
haptic13,
phatic13,
photic13,
adipic11,
atopic10,
dacoit9,
5 letter words:
chapt12,
patch12,
pitch12,
poach12,
aphid11,
ditch11,
aitch10,
chiao10,
tophi10,
coapt9,
dhoti9,
optic9,
picot9,
topic9,
adopt8,
dicot8,
dicta8,
iodic8,
octad8,
podia8,
coati7,
patio7,
idiot6,
oidia6,
4 letter words:
caph11,
chap11,
chip11,
chop11,
chad10,
chid10,
chai9,
chao9,
chat9,
chia9,
chit9,
itch9,
opah9,
path9,
phat9,
phot9,
pith9,
tach9,
toph9,
capo8,
doth8,
odah8,
pact8,
pica8,
acid7,
apod7,
cadi7,
caid7,
coda7,
dipt7,
dopa7,
oath7,
odic7,
ohia7,
padi7,
paid7,
thio7,
atop6,
ciao6,
coat6,
otic6,
pita6,
taco6,
tipi6,
topi6,
adit5,
dato5,
dita5,
doat5,
doit5,
toad5,
iota4,
3 letter words:
chi8,
hap8,
hic8,
hip8,
hop8,
ich8,
pah8,
phi8,
pht8,
poh8,
cap7,
cop7,
dah7,
had7,
hid7,
hod7,
pac7,
pic7,
ahi6,
cad6,
cod6,
dap6,
dip6,
doc6,
hao6,
hat6,
hit6,
hot6,
pad6,
pod6,
tho6,
act5,
apo5,
apt5,
cat5,
cot5,
oca5,
opt5,
pat5,
pia5,
pit5,
poi5,
pot5,
tap5,
tic5,
tip5,
top5,
ado4,
aid4,
dit4,
dot4,
oda4,
tad4,
tod4,
ait3,
oat3,
tao3,
2 letter words:
ah5,
ha5,
hi5,
ho5,
oh5,
op4,
pa4,
pi4,
ad3,
do3,
id3,
od3,
ai2,
at2,
it2,
oi2,
ta2,
ti2,
to2,