6 letter words:
duffel13,
duffle13,
luffed13,
5 letter words:
flued9,
4 letter words:
duff11,
luff10,
delf8,
feud8,
fled8,
flue7,
fuel7,
duel5,
leud5,
lude5,
3 letter words:
eff9,
def7,
fed7,
fud7,
elf6,
feu6,
flu6,
del4,
due4,
eld4,
led4,
leu3,
2 letter words:
ef5,
fe5,
de3,
ed3,
el2,
