Webster's Revised Unabridged Dictionary · 1913

Away

Away ({not transcribed}) , adverb

[Anglo-Saxon aweg, anweg, onweg; on on + weg way.]

1.
From a place; hence.
The sound is going away. — Shakespeare
Have me away, for I am sore wounded. — 2 Chron. xxxv. 23
2.
Absent; gone; at a distance; as, the master is away from home.
3.
Aside; off; in another direction.
The axis of rotation is inclined away from the sun. — Lockyer
4.
From a state or condition of being; out of existence.
Be near me when I fade away. — Tennyson
5.
By ellipsis of the verb, equivalent to an imperative: Go or come away; begone; take away.
And the Lord said... Away, get thee down. — Exod. xix. 24
6.
On; in continuance; without intermission or delay; as, sing away. [Colloquial]

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.

Collocations (3)
Away with , bear, abide [Obsolete or Archaic] The calling of assemblies, I can not away with. — Isa. i. 13 I can not bear or endure [it].
Away with , 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.