6 letter words:
bougie9,
brogue9,
rubigo9,
ourebi8,
5 letter words:
bogie8,
bourg8,
giber8,
erugo6,
guiro6,
rogue6,
rouge6,
ourie5,
4 letter words:
berg7,
biog7,
brig7,
burg7,
gibe7,
grub7,
bier6,
biro6,
bore6,
brie6,
brio6,
robe6,
rube6,
ergo5,
giro5,
goer5,
gore5,
grue5,
ogre5,
urge5,
euro4,
roue4,
3 letter words:
beg6,
big6,
bog6,
bug6,
gib6,
gob6,
bio5,
bro5,
bur5,
obe5,
obi5,
orb5,
reb5,
rib5,
rob5,
rub5,
urb5,
ego4,
erg4,
gie4,
gor4,
reg4,
rig4,
rug4,
ire3,
ore3,
our3,
rei3,
roe3,
rue3,
2 letter words:
be4,
bi4,
bo4,
go3,
er2,
oe2,
oi2,
or2,
re2,