10 letter words:
heretofore16,
9 letter words:
therefore15,
8 letter words:
frothier14,
therefor14,
rooftree11,
7 letter words:
frother13,
heftier13,
thereof13,
ferrite10,
footier10,
heritor10,
hootier10,
reefier10,
rotifer10,
retiree7,
rootier7,
6 letter words:
hefter12,
heifer12,
hereof12,
hoofer12,
either9,
ferret9,
foetor9,
footer9,
footie9,
forrit9,
hereto9,
heriot9,
hetero9,
hooter9,
reefer9,
refire9,
rehire9,
reroof9,
rhetor9,
roofer9,
roofie9,
eerier6,
retire6,
retore6,
rioter6,
rooter6,
torero6,
5 letter words:
firth11,
forth11,
frith11,
froth11,
thief11,
ether8,
fetor8,
firer8,
forte8,
freer8,
frere8,
frier8,
frore8,
hiree8,
hirer8,
ither8,
ofter8,
ortho8,
other8,
refer8,
refit8,
rifer8,
their8,
there8,
thoro8,
three8,
throe8,
eerie5,
oorie5,
retie5,
retro5,
rotor5,
trier5,
4 letter words:
heft10,
hoof10,
feet7,
fere7,
fete7,
fire7,
foot7,
fore7,
fort7,
free7,
fret7,
frit7,
froe7,
heir7,
here7,
hero7,
hire7,
hoer7,
hoot7,
reef7,
reft7,
reif7,
rife7,
rift7,
roof7,
thee7,
thio7,
thir7,
thro7,
tref7,
rete4,
riot4,
rite4,
root4,
rote4,
roti4,
roto4,
tier4,
tire4,
tiro4,
tore4,
tori4,
toro4,
torr4,
tree4,
trio4,
3 letter words:
feh9,
foh9,
eft6,
eth6,
fee6,
fer6,
fet6,
fie6,
fir6,
fit6,
foe6,
for6,
fro6,
her6,
het6,
hie6,
hit6,
hoe6,
hot6,
oft6,
oho6,
ooh6,
ref6,
rho6,
rif6,
the6,
tho6,
ere3,
err3,
ire3,
oot3,
ore3,
ort3,
ree3,
rei3,
ret3,
roe3,
rot3,
tee3,
tie3,
toe3,
too3,
tor3,
2 letter words:
ef5,
eh5,
fe5,
he5,
hi5,
ho5,
if5,
of5,
oh5,
er2,
et2,
it2,
oe2,
oi2,
or2,
re2,
ti2,
to2,