8 letter words:
ossified12,
7 letter words:
iodises8,
6 letter words:
diesis7,
iodise7,
5 letter words:
defis9,
feods9,
fidos9,
fosse8,
seifs8,
doses6,
eidos6,
sides6,
issei5,
4 letter words:
defi8,
difs8,
feds8,
feod8,
fido8,
fids8,
fess7,
foes7,
foss7,
seif7,
dies5,
diss5,
does5,
dose5,
doss5,
ides5,
odes5,
side5,
sods5,
oses4,
seis4,
3 letter words:
def7,
dif7,
fed7,
fid7,
efs6,
fes6,
fie6,
foe6,
ifs6,
die4,
dis4,
doe4,
dos4,
eds4,
ids4,
ode4,
ods4,
sod4,
ess3,
oes3,
ose3,
sei3,
sis3,
sos3,
2 letter words:
ef5,
fe5,
if5,
of5,
de3,
do3,
ed3,
id3,
od3,
es2,
is2,
oe2,
oi2,
os2,
si2,
so2,