9 letter words:
preferred15,
8 letter words:
deferrer12,
referred12,
6 letter words:
prefer11,
feeder10,
feered10,
reefed10,
refeed10,
deeper9,
peered9,
reefer9,
reeder7,
5 letter words:
defer9,
freed9,
refed9,
ferer8,
freer8,
frere8,
preed8,
refer8,
deere6,
drere6,
erred6,
reede6,
4 letter words:
feed8,
deep7,
feer7,
fere7,
free7,
peed7,
reef7,
epee6,
peer6,
pere6,
pree6,
deer5,
dere5,
dree5,
ered5,
rede5,
reed5,
3 letter words:
def7,
fed7,
erf6,
fee6,
fer6,
ped6,
ref6,
pee5,
per5,
pre5,
rep5,
dee4,
red4,
ere3,
err3,
ree3,
2 letter words:
ef5,
fe5,
pe4,
de3,
ed3,
ee2,
er2,
re2,
