6 letter words:
theist9,
tithes9,
5 letter words:
heist8,
teths8,
tithe8,
4 letter words:
eths7,
hest7,
hets7,
hies7,
hist7,
hits7,
shit7,
sith7,
teth7,
this7,
sett4,
site4,
stet4,
test4,
tets4,
ties4,
tits4,
3 letter words:
eth6,
hes6,
het6,
hie6,
his6,
hit6,
she6,
the6,
its3,
sei3,
set3,
sit3,
tet3,
tie3,
tis3,
tit3,
2 letter words:
eh5,
he5,
hi5,
sh5,
es2,
et2,
is2,
it2,
si2,
ti2,
