8 letter words:
borrower13,
6 letter words:
borrow11,
5 letter words:
bower10,
rower8,
wooer8,
borer7,
error5,
4 letter words:
brew9,
brow9,
wore7,
boor6,
bore6,
broo6,
brrr6,
oboe6,
robe6,
3 letter words:
bow8,
web8,
owe6,
row6,
woe6,
woo6,
boo5,
bro5,
brr5,
obe5,
orb5,
reb5,
rob5,
err3,
ore3,
roe3,
2 letter words:
ow5,
we5,
wo5,
be4,
bo4,
er2,
oe2,
or2,
re2,