Etymograph

English

SI

SI comes from French SI ‘Système international d'unités’.

  1. Frenchc. 1600–presentSI‘Système international d'unités’
  2. Englishearliest quotation 2018same form

attested reconstructed ? uncertain or disputed

Lineage

  1. Frenchc. 1600–presentSI‘Système international d'unités’
  2. Englishearliest quotation 2018same form

Earliest quotation: 2018, Matthew Robinson and Lianne Kolirin, The world has just redefined the kilogram: “The reason for the change to the International System…”

Today it means

name International System of Units

Language periods are conventional ranges, not dates for this word.

Etymograph / French SI / SI