9 letter words:
befretted15,
8 letter words:
fettered12,
bettered11,
7 letter words:
fretted11,
6 letter words:
beefed12,
befret11,
bereft11,
defter10,
feeder10,
fetted10,
reefed10,
refeed10,
betted9,
fetter9,
better8,
retted7,
teeter6,
terete6,
5 letter words:
defer9,
feted9,
freed9,
refed9,
brede8,
breed8,
beret7,
deter6,
treed6,
4 letter words:
beef9,
feeb9,
deft8,
feed8,
bred7,
debt7,
feet7,
fere7,
fete7,
free7,
fret7,
reef7,
reft7,
tref7,
beer6,
beet6,
bree6,
deer5,
deet5,
dere5,
dree5,
rede5,
reed5,
teed5,
rete4,
tree4,
tret4,
3 letter words:
def7,
fed7,
bed6,
deb6,
eft6,
fee6,
fer6,
fet6,
ref6,
bee5,
bet5,
reb5,
dee4,
red4,
ted4,
ere3,
ree3,
ret3,
tee3,
tet3,
2 letter words:
ef5,
fe5,
be4,
de3,
ed3,
er2,
et2,
re2,