English
equation
Equation comes from Latin aequātiō ‘an equalizing’, and goes back to Old Latin aiquos.
- Old Latinc. 700–75 BCEaiquos
- Latinc. 75 BCE–200 CEaequus‘equal’
- Latin, derivedc. 75 BCE–200 CEaequō‘make equal or level’
- Latin, derivedc. 75 BCE–200 CEaequātiō‘an equalizing’
- Englishearliest quotation 2013equation
attested reconstructed ? uncertain or disputed deepest recorded ancestor
Earlier history uncertain.
Lineage
- Old Latinc. 700–75 BCEaiquos
- Latinc. 75 BCE–200 CEaequus‘equal’
- Latin, derivedc. 75 BCE–200 CEaequō‘make equal or level’
- Latin, derivedc. 75 BCE–200 CEaequātiō‘an equalizing’
- Englishearliest quotation 2013equation
Earliest quotation: 2013, Eva Illouz: “The cultural equation of love with suffering is similar…”
Formed from equate + -ion
Old Latin aiquos
Latin aequus ‘level, equal’
Latin aequō ‘make equal or level’
Latin aequātus ‘equalized, having been made equal’
Middle English equaten
English equate
Linked words
through Proto-Italic *aikʷos
through Old Latin aiquos
equality, inequitable, 14 more
through Latin aequus ‘equal’
Today it means
noun The act or process of equating two or more things, or the state of those things being equal (that is, identical).
Language periods are conventional ranges, not dates for this word.
Etymograph / Old Latin aiquos / equation