do away with

do away with idiom
  1. Make an end of, eliminate. For example, The town fathers have decided to do away with the old lighting system.
  2. Demolish, destroy, kill, as in The animal officer did away with the injured deer lying by the side of the road. In the 13th century both usages were simply put as do away, the with being added only in the late 1700s.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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