7 letter words:
difform16,
5 letter words:
fiord9,
4 letter words:
miff12,
diff11,
doff11,
riff10,
firm9,
form9,
from9,
fido8,
foid8,
ford8,
dorm7,
modi7,
miro6,
3 letter words:
iff9,
off9,
dif7,
dof7,
fid7,
dim6,
dom6,
fir6,
for6,
fro6,
mid6,
mod6,
orf6,
rif6,
mir5,
moi5,
mor5,
rim5,
rom5,
dor4,
ord4,
rid4,
rod4,
2 letter words:
if5,
of5,
mi4,
mo4,
om4,
di3,
do3,
id3,
od3,
io2,
oi2,
or2,