Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
BOWNE
As described in historical dictionaries
Patronymica Britannica (1860)
BOWNE. In a document of the XA. cent, the name of Bohun is thus spelt. Sussex Arch. Coll, iii., 187. It also means ready, prepared. Jamieson.