7 letter words:
protist9,
tropist9,
6 letter words:
prosit8,
ripost8,
stript8,
tripos8,
5 letter words:
ports7,
posit7,
potts7,
prost7,
spirt7,
sport7,
sprit7,
stirp7,
stopt7,
strip7,
strop7,
topis7,
trips7,
riots5,
ritts5,
roist5,
rosit5,
rosti5,
rotis5,
stoit5,
tiros5,
toits5,
torsi5,
torts5,
trios5,
trist5,
trois5,
trots5,
4 letter words:
opts6,
pirs6,
piso6,
pits6,
pois6,
port6,
post6,
pots6,
pott6,
pros6,
rips6,
ript6,
risp6,
spit6,
spot6,
stop6,
tips6,
tipt6,
topi6,
tops6,
trip6,
trop6,
orts4,
riot4,
rits4,
ritt4,
rost4,
roti4,
rots4,
sori4,
sort4,
stir4,
stot4,
tiro4,
tits4,
toit4,
tori4,
tors4,
tort4,
tost4,
tots4,
trio4,
trot4,
3 letter words:
ops5,
opt5,
pir5,
pis5,
pit5,
poi5,
pos5,
pot5,
pro5,
psi5,
pst5,
rip5,
sip5,
sop5,
tip5,
top5,
ios3,
iso3,
its3,
ors3,
ort3,
rit3,
rot3,
sir3,
sit3,
sot3,
sri3,
tis3,
tit3,
tor3,
tot3,
2 letter words:
op4,
pi4,
po4,
io2,
is2,
it2,
oi2,
or2,
os2,
si2,
so2,
st2,
ti2,
to2,