6 letter words:
obento8,
reboot8,
enroot6,
5 letter words:
bento7,
beton7,
boner7,
borne7,
boron7,
brent7,
robot7,
noter5,
tenor5,
toner5,
trone5,
4 letter words:
bent6,
bone6,
boon6,
boor6,
boot6,
bore6,
born6,
bort6,
bren6,
broo6,
ebon6,
oboe6,
robe6,
note4,
onto4,
rent4,
root4,
rote4,
roto4,
tern4,
tone4,
toon4,
tore4,
torn4,
toro4,
3 letter words:
ben5,
bet5,
boo5,
bot5,
bro5,
neb5,
nob5,
obe5,
orb5,
reb5,
rob5,
eon3,
ern3,
net3,
noo3,
nor3,
not3,
one3,
ono3,
oot3,
ore3,
ort3,
ret3,
roe3,
rot3,
ten3,
toe3,
ton3,
too3,
tor3,
2 letter words:
be4,
bo4,
en2,
er2,
et2,
ne2,
no2,
oe2,
on2,
or2,
re2,
to2,