4 letter words:
delf8,
feod8,
fled8,
fold8,
fell7,
floe7,
dell5,
delo5,
dole5,
doll5,
lode5,
3 letter words:
def7,
dof7,
fed7,
elf6,
foe6,
del4,
doe4,
dol4,
eld4,
led4,
lod4,
ode4,
old4,
ell3,
ole3,
2 letter words:
ef5,
fe5,
of5,
de3,
do3,
ed3,
od3,
el2,
lo2,
oe2,