for good

for good idiom
Also, for good and all. Permanently, forever. For example, I'm moving to Europe for good. [1500s] Also see for keeps.

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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