6 letter words:
ruffle12,
5 letter words:
ruffe11,
4 letter words:
luff10,
ruff10,
flue7,
fuel7,
furl7,
lure4,
rule4,
3 letter words:
eff9,
elf6,
erf6,
fer6,
feu6,
flu6,
fur6,
ref6,
leu3,
lur3,
rue3,
ule3,
ure3,
2 letter words:
ef5,
fe5,
el2,
er2,
re2,
ur2,