['vævәsɔ:(r)]
n.
[史](中世纪的)封臣(领有封地并有自己的家臣,地位次于男爵)

Vavasor \Vav"a*sor\, n. [OE. vavasour, OF. vavassor, vavassour,
F. vavasseur, LL. vavassor, probably contr. from vassus
vassorum vassal of the vassals. See {Vassal}.] (Feud. Law)
The vassal or tenant of a baron; one who held under a baron,
and who also had tenants under him; one in dignity next to a
baron; a title of dignity next to a baron. --Burrill. ``A
worthy vavasour.'' --Chaucer. [Also written {vavasour},
{vavassor}, {valvasor}, etc.]

Vavasours subdivide again to vassals, exchanging land
and cattle, human or otherwise, against fealty.
--Motley.