7 letter words:
pyrosis12,
6 letter words:
prissy11,
pyosis11,
5 letter words:
prosy10,
pyros10,
spiry10,
sysop10,
pisos7,
priss7,
pross7,
4 letter words:
posy9,
pyro9,
ropy9,
spry9,
yips9,
rosy7,
soys7,
piso6,
piss6,
pois6,
pros6,
psis6,
rips6,
sips6,
sops6,
sirs4,
sori4,
sris4,
3 letter words:
pry8,
spy8,
yip8,
soy6,
ops5,
pis5,
poi5,
pro5,
psi5,
rip5,
sip5,
sop5,
ors3,
sir3,
sis3,
sos3,
sri3,
2 letter words:
oy5,
yo5,
op4,
pi4,
is2,
oi2,
or2,
os2,
si2,
so2,