9 letter words:
arrogator10,
6 letter words:
agorot7,
garrot7,
orator6,
5 letter words:
agora6,
argot6,
gator6,
groat6,
aorta5,
ratoo5,
rotor5,
4 letter words:
agar5,
gart5,
goat5,
goor5,
gora5,
grat5,
grot5,
raga5,
toga5,
trog5,
arar4,
orra4,
rata4,
rato4,
roar4,
root4,
rort4,
rota4,
roto4,
tara4,
taro4,
tora4,
toro4,
torr4,
3 letter words:
aga4,
ago4,
gar4,
gat4,
goa4,
goo4,
gor4,
got4,
rag4,
tag4,
tog4,
art3,
oar3,
oat3,
oor3,
oot3,
ora3,
ort3,
rat3,
roo3,
rot3,
tao3,
tar3,
too3,
tor3,
2 letter words:
ag3,
go3,
aa2,
ar2,
at2,
oo2,
or2,
ta2,
to2,
