4 letter words:
prow9,
trow7,
wort7,
port6,
pour6,
pout6,
roup6,
trop6,
rout4,
tour4,
3 letter words:
pow8,
wop8,
row6,
tow6,
two6,
wot6,
opt5,
pot5,
pro5,
pur5,
put5,
top5,
tup5,
upo5,
urp5,
ort3,
our3,
out3,
rot3,
rut3,
tor3,
2 letter words:
ow5,
wo5,
op4,
up4,
or2,
to2,
ut2,