- to interpolate; interpose.
- to insert (an extra day, month, etc.) in the calendar.
Origin of intercalate
1605–15; < Latin intercalātus past participle of intercalāre to insert a day or month into the calendar, equivalent to inter- inter- + calā- (stem of calāre to proclaim) + -tus past participle suffix
SynonymsSee more synonyms for intercalate on Thesaurus.com
1. interject, introduce, insinuate.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for intercalated
The list, therefore, begins anew with the intercalated month.The Religion of Babylonia and Assyria
This month Uayeb consists of the five intercalated days only.A Glimpse at Guatemala
Anne Cary Maudslay
What is the meaning of these intercalated glacial accumulations?Fragments of Earth Lore
To provide for the six additional hours of the year, they intercalated twelve and a half days every fifty-two years.History of the Intellectual Development of Europe, Volume II (of 2)
John William Draper
These are of 3986 days, thus causing the intercalated days to come at the same time in all three.
- to insert (one or more days) into the calendar
- to interpolate or insert
C17: from Latin intercalāre to insert, proclaim that a day has been inserted, from inter- + calāre to proclaim
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 intercalated
Online Etymology Dictionary, © 2010 Douglas Harper
- Inserted between two others; interposed.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.