of or relating to the distant past or to remote events; ancient: long-ago exploits remembered only in folk tales.
Origin of long-ago
First recorded in 1825–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for long agoearly, old, preceding, earlier, late, prior, previous, recent, departed, erstwhile, already, formerly, previously, before, then, heretofore, once, hitherto, history, latter
Online Etymology Dictionary, © 2010 Douglas Harper
A time well before the present, the distant past. For example, I read that book long ago, or The battles of long ago were just as fierce. [Second half of 1300s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.