Origin of sum-up
- 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
Related Words for sum upsum, examine, epitomize, close, conclude, condense, digest, estimate, inventory, recapitulate, review, total, synopsize
- 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)
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.
Present the substance of, summarize, as in They always sum up the important news in a couple of minutes, or That expletive sums up my feelings about the matter. [Early 1600s]