8 letter words:
tsitsith11,
7 letter words:
tittish10,
5 letter words:
hists8,
shist8,
shits8,
titis5,
4 letter words:
hiss7,
hist7,
hits7,
shit7,
sith7,
this7,
isit4,
sist4,
sits4,
titi4,
tits4,
3 letter words:
his6,
hit6,
ish6,
its3,
sis3,
sit3,
tis3,
tit3,
2 letter words:
hi5,
sh5,
is2,
it2,
si2,
st2,
ti2,