- the limit of the sequence of partial sums of a given infinite series.
- union(def 10a).
verb (used with object), summed, sum·ming.
verb (used without object), summed, sum·ming.
- to reckon: We summed up our assets and liabilities.
- to bring into or contain in a brief and comprehensive statement; summarize: to sum up the case for the prosecution.
- to form a quick estimate of: I summed him up in a minute.
Origin of sum
Synonyms for sum
cogito, ergo sum
Examples from the Web for sum
Contemporary Examples of sum
On the other hand, they are viewing their donors, and their future children, not as whole people but as the sum of certain parts.Have Sperm, Will Travel: The ‘Natural Inseminators’ Helping Women Avoid the Sperm Bank
November 29, 2014
But when it comes to the value of antiquities for human history, the sum of the parts is not greater than the whole.Dismembering History: The Shady Online Trade in Ancient Texts
November 23, 2014
In sum, SARS spread to many more countries than Ebola has so far.Fact-Checking the Sunday Shows: October 19
October 19, 2014
Two years later, in 1959, the Germans proposed a settlement of less than half the sum Paul had claimed.My Grandfather's War: Recovering the Art the Nazis Stole
October 5, 2014
As the economy soured, Californians began to think in terms of limited resources and came to see migration as a zero sum game.Careful What You Wish For: Here’s What California Would Look Like Without Illegal Immigrants
Ruben Navarrette Jr.
September 18, 2014
Historical Examples of sum
This sum of money and the knowledge of the printer's trade made up his capital.Captains of Industry
The word thinking, defined early in this chapter, is broadly used to denote the sum of all the intellectual faculties.Applied Psychology for Nurses
Mary F. Porter
This, he believed, was the sum of good government; and this was the government which he was determined to establish.Jefferson and his Colleagues
He had originally possessed but twenty thousand francs, a sum which in no wise corresponded with his lofty pretensions.The Count's Millions
How to dispose of this sum for the best advantage of his family, was matter of anxious consideration to Butler.The Heart of Mid-Lothian, Volume 2, Illustrated
Sir Walter Scott
- the result of the addition of numbers, quantities, objects, etc
- the cardinality of the union of disjoint sets whose cardinalities are the given numbers
verb sums, summing or summed
Word Origin for sum
noun plural sumy (sʊmɪ)
cogito, ergo sum
late 13c., "quantity or amount of money," from Anglo-French and Old French summe (13c.), from Latin summa "total number, whole, essence, gist," noun use of fem. of summus "highest," from PIE *sup-mos-, from root *uper "over" (see super-).
The sense development from "highest" to "total number" is probably via the Roman custom of adding up a stack of figures from the bottom and writing the sum at the top, rather than at the bottom as we do now (cf. the bottom line). Meaning "total number of anything" is recorded from late 14c. Meaning "essence of a writing or speech" also is attested from late 14c. The verb is attested from c.1300; meaning "briefly state the substance of" (now usually with up) is first recorded 1620s. Sum-total is attested from late 14c., from Medieval Latin summa totalis.