giambeux

from The Collaborative International Dictionary of English v.0.48

Giambeux \Giam"beux\ (zh[.a]m"b[.u]), n. pl. [See {Jambeux}.]
   Greaves; armor for the legs. [Obs.] --Spenser.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Jambes \Jambes\, Jambeux \Jam"beux\, n. pl. [From F. jambe a
   leg: cf. OF. jambiere. See {Jamb}, n.] (Ancient Armor)
   In the Middle Ages, armor for the legs below the knees,
   usually having front and back pieces; called also {greaves}.
   [Written also {giambeux}.] --Chaucer.
   [1913 Webster]