dunnage

from The Collaborative International Dictionary of English v.0.48

Dunnage \Dun"nage\, n. [Cf. {Dun} a mound.] (Naut.)
   Fagots, boughs, or loose materials of any kind, laid on the
   bottom of the hold for the cargo to rest upon to prevent
   injury by water, or stowed among casks and other cargo to
   prevent their motion.
   [1913 Webster]

from Bouvier's Law Dictionary, Revised 6th Ed (1856)

DUNNAGE, mer. law. Pieces of wood placed against the sides and bottom of the 
hold of a vessel, to preserve the cargo from the effect of leakage, 
according to its nature and quality. 2 Magens, 101, art. 125, 126 Abbott on 
Shipp. 227.

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