4 letter words:
orzo13,
ouzo13,
jour11,
prow9,
poor6,
pour6,
proo6,
roop6,
roup6,
3 letter words:
poz14,
jow13,
zoo12,
jor10,
pow8,
wop8,
row6,
woo6,
oop5,
oup5,
poo5,
pro5,
pur5,
upo5,
urp5,
oor3,
our3,
roo3,
2 letter words:
zo11,
jo9,
ow5,
wo5,
op4,
po4,
up4,
oo2,
or2,
ou2,
ur2,