5 letter words:
roset5,
rotes5,
store5,
tores5,
torse5,
4 letter words:
eros4,
erst4,
ores4,
orts4,
rest4,
rets4,
roes4,
rose4,
rote4,
rots4,
sore4,
sort4,
toes4,
tore4,
tors4,
tres4,
3 letter words:
ers3,
oes3,
ore3,
ors3,
ort3,
ose3,
res3,
ret3,
roe3,
rot3,
ser3,
set3,
sot3,
toe3,
tor3,
2 letter words:
er2,
es2,
et2,
oe2,
or2,
os2,
re2,
so2,
to2,