Source : Webster's Revised Unabridged Dictionary (1913)

Bag \Bag\, n. [OE. bagge; cf. Icel. baggi, and also OF. bague,
   bundle, LL. baga.]
   1. A sack or pouch, used for holding anything; as, a bag of
      meal or of money.

   2. A sac, or dependent gland, in animal bodies, containing
      some fluid or other substance; as, the bag of poison in
      the mouth of some serpents; the bag of a cow.

   3. A sort of silken purse formerly tied about men's hair
      behind, by way of ornament. [Obs.]

   4. The quantity of game bagged.

   5. (Com.) A certain quantity of a commodity, such as it is
      customary to carry to market in a sack; as, a bag of
      pepper or hops; a bag of coffee.

   {Bag and baggage}, all that belongs to one.

   {To give one the bag}, to disappoint him. [Obs.] --Bunyan.