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langsyne

or lang syne

[lang-zahyn, -sahyn]Scot.
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adverb
  1. long since; long ago.
noun
  1. time long past.

Origin of langsyne

First recorded in 1490–1500; lang + syne
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for lang syne

langsyne

adverb
  1. long ago; long since
noun
  1. times long past, esp those fondly rememberedSee also auld lang syne

Word Origin

C16: Scottish: long since
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for lang syne

c.1500, Scottish variant of long since; popularized in Burns' song, 1788.

Online Etymology Dictionary, © 2010 Douglas Harper