5 letter words:
ester5,
reest5,
reset5,
retes5,
steer5,
stere5,
teers5,
teres5,
terse5,
trees5,
4 letter words:
eres4,
erst4,
rees4,
rest4,
rete4,
rets4,
seer4,
sere4,
teer4,
tees4,
tree4,
tres4,
3 letter words:
ere3,
ers3,
est3,
ree3,
res3,
ret3,
see3,
ser3,
set3,
tee3,
tes3,
2 letter words:
ee2,
er2,
es2,
et2,
re2,
st2,
te2,