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v. sum·ma·ted, sum·ma·ting, sum·mates
To sum up: summate a legal argument.
To form or constitute a cumulative effect.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (intr) to come together
2. (tr) to add together, unite
3. (tr) to summarize
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈsʌm eɪt)

v.t. -mat•ed, -mat•ing.
to add together; total; sum up.
[1895–1900; back formation from summation]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Verb1.summate - determine the sum ofsummate - determine the sum of; "Add all the people in this town to those of the neighboring town"
add together, add - make an addition by combining numbers; "Add 27 and 49, please!"
count, numerate, enumerate, number - determine the number or amount of; "Can you count the books on your shelf?"; "Count your change"
2.summate - form or constitute a cumulative effect
combine - join for a common purpose or in a common action; "These forces combined with others"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
His savage barbarity was equalled only by the con- summate coolness with which he committed the grossest and most savage deeds upon the slaves under his charge.
'I am a lawyer, and I read (the situation) slowly...when it adds up, if you summate their figures, it would end up power-sharing and coalition government.
"People hand you all sorts of things these days," he says, "and more data is almost never bad, but when they show up with paper, how do you summate that?" He's hired a skilled team to take on the task of pulling it all together.
Jean-Claude Juncker, the former prime minister of Luxembourg and con summate European insider who is on a short list of candidates to become the next president of the European Commission (the administrative arm of the EU) had this to say about the election results, "The extreme right, contrary to what some of the media has said, did not win this election.
Once more Luis Su[sz]rez fused gr and craft to devastating effect, Lucas Le was imperious in central midfield, wh each of Dalglish's four summer signi have settled into life at Anfield with c summate ease.
In the early stages following stroke onset when hypotonia is prevalent and movement appears impossible, the effect of appropriate stimuli will compound or summate to produce a flicker of response, possibly in a small part of the range only at first.
Each topic was given a 20-minute slot for the speaker to succinctly summate the traditional imaging approaches to specific disease and discuss the latest and greatest advances in that particular field.