6 letter words:
fender10,
5 letter words:
fewer11,
defer9,
freed9,
refed9,
rewed9,
newer8,
renew8,
ender6,
4 letter words:
drew8,
feed8,
fend8,
weed8,
wend8,
ewer7,
fere7,
fern7,
free7,
reef7,
ween7,
weer7,
were7,
wren7,
deer5,
dene5,
dere5,
dree5,
need5,
nerd5,
rede5,
reed5,
rend5,
erne4,
3 letter words:
few9,
def7,
dew7,
fed7,
wed7,
ewe6,
fee6,
fen6,
fer6,
new6,
ref6,
wee6,
wen6,
dee4,
den4,
end4,
red4,
ere3,
ern3,
nee3,
ree3,
2 letter words:
ef5,
fe5,
we5,
de3,
ed3,
en2,
er2,
ne2,
re2,