5 letter words:
group8,
4 letter words:
pork10,
pouk10,
gouk9,
grok9,
koru8,
gorp7,
prog7,
upgo7,
pour6,
roup6,
3 letter words:
kop9,
kor7,
ouk7,
rok7,
gup6,
pug6,
oup5,
pro5,
pur5,
upo5,
urp5,
gor4,
gur4,
rug4,
our3,
2 letter words:
ko6,
op4,
po4,
up4,
go3,
gu3,
ug3,
or2,
ou2,
ur2,