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Etymology

integer

/ˈɪn.tɪ.dʒər/

noun

Origin

Latin

integer — untouched, whole, complete

Overview

Meaning Now

  • A whole number that is not a fraction or decimal, including positive numbers, negative numbers, and zero.
  • A thing complete in itself; something whole or entire.

Literal older meaning

untouched, whole

Language path

Latin → Middle French → English

Earliest form

integer

Earliest period

16th century

Journey

The term stems from the Latin concept of something remaining 'untouched' or 'intact'. By the 16th century, it was adopted into English to distinguish whole quantities from fractions in arithmetic, mirroring the Latin use of 'numerus integer' (a whole number).

Evolution

  1. Proto-Indo-European

    *n-tag-ro-

    “untouched”

    Compound of in- (not) + tangere (to touch)

  2. Latin

    integer

    “whole, entire”

    Used as an adjective for things that are undamaged.

  3. Late Latin

    integer

    “whole number”

    Mathematical usage develops from the meaning of 'entirety'.

  4. English

    integer

    “a whole number”

    Introduced into English scientific and mathematical discourse.

Connections

Word parts

in-

prefix

not

tang-

root

to touch

-er

suffix

adjectival suffix

Related across languages

  • French

    entier

    entire, whole

  • Spanish

    entero

    whole, entire

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