The Collaborative International Dictionary of English v.0.48:

Away \A*way"\, adv. [AS. aweg, anweg, onweg; on on + weg way.]
   1. From a place; hence.
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            The sound is going away.              --Shak.
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            Have me away, for I am sore wounded.  --2 Chron.
                                                  xxxv. 23.
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   2. Absent; gone; at a distance; as, the master is away from
      home.
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   3. Aside; off; in another direction.
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            The axis of rotation is inclined away from the sun.
                                                  --Lockyer.
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   4. From a state or condition of being; out of existence.
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            Be near me when I fade away.          --Tennyson.
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   5. By ellipsis of the verb, equivalent to an imperative: Go
      or come away; begone; take away.
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            And the Lord said . . . Away, get thee down. --Exod.
                                                  xix. 24.
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   6. On; in continuance; without intermission or delay; as,
      sing away. [Colloq.]
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   Note: It is much used in phrases signifying moving or going
         from; as, go away, run away, etc.; all signifying
         departure, or separation to a distance. Sometimes
         without the verb; as, whither away so fast ? "Love hath
         wings, and will away." --Waller. It serves to modify
         the sense of certain verbs by adding that of removal,
         loss, parting with, etc.; as, to throw away; to trifle
         away; to squander away, etc. Sometimes it has merely an
         intensive force; as, to blaze away.
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   Away with, bear, abide. [Obs. or Archaic] "The calling of
      assemblies, I can not away with." (--Isa. i. 13), i. e.,
      "I can not bear or endure [it]."

   Away with one, signifies, take him away. "Away with him,
      crucify him." --John xix. 15.

   To make away with.
      (a) To kill or destroy.
      (b) To carry off.
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