5 letter words:
ceres7,
scree7,
egers6,
grees6,
reges6,
serge6,
4 letter words:
cees6,
cere6,
recs6,
eger5,
ergs5,
gees5,
gree5,
regs5,
rees4,
seer4,
sere4,
3 letter words:
cee5,
rec5,
sec5,
erg4,
gee4,
reg4,
seg4,
ere3,
ers3,
ree3,
res3,
see3,
ser3,
2 letter words:
er2,
es2,
re2,