6 letter words:
rerigs7,
5 letter words:
girrs6,
grise6,
rerig6,
riser5,
4 letter words:
egis5,
ergs5,
gies5,
girr5,
gris5,
regs5,
rigs5,
errs4,
ires4,
iris4,
reis4,
rise4,
seir4,
serr4,
sire4,
siri4,
3 letter words:
erg4,
gie4,
gis4,
reg4,
rig4,
seg4,
err3,
ers3,
ire3,
rei3,
res3,
sei3,
ser3,
sir3,
sri3,
2 letter words:
gi3,
er2,
es2,
is2,
re2,
si2,