4 letter words:
grok9,
kago9,
grav8,
karo8,
kora8,
okra8,
rark8,
arvo7,
voar7,
gora5,
orra4,
roar4,
3 letter words:
ark7,
gov7,
koa7,
kor7,
oak7,
oka7,
rok7,
vag7,
avo6,
ova6,
var6,
vor6,
ago4,
gar4,
goa4,
gor4,
rag4,
oar3,
ora3,
2 letter words:
ka6,
ko6,
ag3,
go3,
ar2,
or2,