6 letter words:
needer7,
5 letter words:
ender6,
4 letter words:
exed12,
deer5,
dene5,
dere5,
dree5,
need5,
nerd5,
rede5,
reed5,
rend5,
erne4,
3 letter words:
dex11,
rex10,
dee4,
den4,
end4,
red4,
ere3,
ern3,
nee3,
ree3,
2 letter words:
ex9,
de3,
ed3,
en2,
er2,
ne2,
re2,