5 letter words:
fores8,
froes8,
orfes8,
4 letter words:
foes7,
fore7,
froe7,
fros7,
orfe7,
orfs7,
refs7,
serf7,
eros4,
ores4,
reos4,
roes4,
rose4,
sore4,
3 letter words:
efs6,
erf6,
fer6,
fes6,
foe6,
for6,
fro6,
orf6,
ref6,
ers3,
oes3,
ore3,
ors3,
ose3,
reo3,
res3,
roe3,
ser3,
2 letter words:
ef5,
fe5,
of5,
er2,
es2,
oe2,
or2,
os2,
re2,
so2,