Idioms and Phrases with on the eve of
on the eve of
Just prior to, as in On the eve of the conference the main speaker backed out. This expression uses eve, literally “the night before,” more loosely. [Late 1700s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.