6 letter words:
teered7,
5 letter words:
deere6,
deter6,
reede6,
treed6,
4 letter words:
deer5,
deet5,
dere5,
dree5,
ered5,
rede5,
reed5,
teed5,
rete4,
teer4,
tree4,
3 letter words:
dee4,
red4,
ted4,
ere3,
ree3,
ret3,
tee3,
2 letter words:
de3,
ed3,
ee2,
er2,
et2,
re2,
te2,