-illion

EnglishEdit

EtymologyEdit

Back-formation from million, then used in billion, trillion, quadrillion, each from French, ultimately from Italian mille (thousand) and the augmentative suffix -one. -illion was segmented from million as if mi- was a prefix, and -illion the stem.

SuffixEdit

-illion

  1. Combined with Latin prefixes for names of integers in order to form names of powers of a million or of a thousand greater than 1,000,000. Thus we have the names billion, trillion, etc.
  2. Added to various nonsense syllables to indicate an arbitrarily very large number.

Usage notesEdit

  • The words formed by combining the Latin prefix for the name of an integer   ( ) with this suffix may mean   or   depending on national practices. Hence billion can mean “million million” or “thousand million”. See the usage notes at Wiktionary’s appendix on numbers for more information.

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Related termsEdit

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FrenchEdit

EtymologyEdit

Back-formation from million, ultimately from Italian mille (thousand) and the augmentative suffix -one. -illion was segmented from million as if mi- was a prefix, and -illion the stem.

SuffixEdit

-illion m (plural -illions)

  1. -illion

Derived termsEdit

Related termsEdit