7 letter words:
missish12,
6 letter words:
missis8,
5 letter words:
imshi10,
mihis10,
shims10,
simis7,
4 letter words:
hims9,
mihi9,
shim9,
hiss7,
isms6,
miss6,
simi6,
sims6,
siss4,
3 letter words:
him8,
his6,
ish6,
ism5,
mis5,
sim5,
sis3,
2 letter words:
hm7,
hi5,
sh5,
mi4,
is2,
si2,