Etymograph

English

necessary

Necessary comes from Latin necessārius ‘unavoidable, inevitable, required’, and goes back to necesse.

  1. Latinc. 75 BCE–200 CEnecesse1‘unavoidable’
  2. Latinc. 75 BCE–200 CEnecessārius1‘unavoidable’variant of necesse
  3. Old Frenchc. 842–1400necessaire1
  4. Middle Englishc. 1150–1500necessarye1
  5. Englishearliest quotation 1599necessary1

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, English necessary
  2. Earliest quotation in Wiktionary’s entry: 1599, The Tragedie of Iulius Cæsar: “Cæs. Cowards dye many times before their deaths, The…”.

Lineage

  1. Latinc. 75 BCE–200 CEnecesseWiktionary, English necessary‘unavoidable’
  2. Latinc. 75 BCE–200 CEnecessāriusWiktionary, English necessary‘unavoidable’variant of necesse
  3. Old Frenchc. 842–1400necessaireWiktionary, English necessary
  4. Middle Englishc. 1150–1500necessaryeWiktionary, English necessary
  5. Englishearliest quotation 1599necessaryWiktionary, English necessary. Earliest quotation in Wiktionary’s entry: 1599, The Tragedie of Iulius Cæsar: “Cæs. Cowards dye many times before their deaths, The…”

The story

From Middle English necessarye, from Old French necessaire, from Latin necessārius (‘unavoidable, inevitable, required’), variant of necesse (‘unavoidable, inevitable’), probably from ne or non cessum, from the perfect passive participle of cēdō (‘yield; avoid, withdraw’); see cede. Older use as a noun in reference to an outhouse or lavatory under the influence of English and Latin necessārium, a medieval term for the place for monks’ “unavoidable” business, usually located behind or attached to monastic dormitories.

Full etymology on Wiktionary

Linked words

through Proto-Italic *kezdō

succession, successor, successive, procession, inaccessible, recessive, precession, 9 more

through Latin cēdō ‘yield’

process, success, procedure, succeed, cease, accessible, excessive, excess, precedent, concede, predecessor, recession, concession, accession, recess, secession, cessation, cede, intercession, 28 more

Today it means

adj Required, essential, whether logically inescapable or needed in order to achieve a desired result or avoid some penalty.

Sources

Sources: Wiktionary, “necessary”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

Etymograph / Latin necesse / necessary

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