7 letter words:
resurge8,
6 letter words:
serger7,
surger7,
urgers7,
5 letter words:
egers6,
grees6,
grues6,
reges6,
segue6,
serge6,
surge6,
urger6,
urges6,
reuse5,
ruers5,
serer5,
surer5,
4 letter words:
eger5,
ergs5,
gees5,
gree5,
grue5,
regs5,
rugs5,
urge5,
errs4,
rees4,
ruer4,
rues4,
ruse4,
seer4,
sere4,
suer4,
sure4,
user4,
3 letter words:
erg4,
gee4,
reg4,
rug4,
seg4,
ere3,
err3,
ers3,
ree3,
res3,
rue3,
see3,
ser3,
sue3,
use3,
2 letter words:
er2,
es2,
re2,
us2,