in the fullness of time

in the fullness of time idiom
Within the appropriate or destined time, as in We'll know if it's a boy or a girl in the fullness of time. This expression employs fullness in the sense of “a complete or ample measure or degree.” [Early 1600s]

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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