13 letter words:
corticotropic21,
9 letter words:
tricrotic13,
7 letter words:
portico11,
proctor11,
prootic11,
6 letter words:
picric12,
citric10,
critic10,
octopi10,
ptotic10,
rococo10,
tictoc10,
tropic10,
octroi8,
otitic8,
roopit8,
torpor8,
tricot8,
tirrit6,
toitoi6,
5 letter words:
cocci11,
cocco11,
coopt9,
croci9,
ictic9,
optic9,
picot9,
topic9,
cirri7,
poori7,
poort7,
potoo7,
potto7,
prior7,
roric7,
topoi7,
toric7,
troop7,
rotor5,
torii5,
torot5,
trior5,
4 letter words:
coco8,
coop8,
croc8,
crop8,
poco8,
cito6,
coir6,
coit6,
coot6,
cott6,
crit6,
otic6,
poor6,
poot6,
port6,
pott6,
proo6,
ript6,
roop6,
tipi6,
tipt6,
toco6,
topi6,
topo6,
torc6,
trip6,
trop6,
otto4,
riot4,
ritt4,
root4,
rort4,
roti4,
roto4,
tiro4,
tirr4,
titi4,
toit4,
toot4,
tori4,
toro4,
torr4,
tort4,
trio4,
trot4,
3 letter words:
cop7,
pic7,
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:
op4,
pi4,
po4,
io2,
it2,
oi2,
oo2,
or2,
ti2,
to2,