Etymograph

English

adequative

Adequative comes from Medieval Latin adaequātivus, from Latin adaequō ‘make equal to’, and ultimately from Old Latin aiquos.

  1. Old Latinc. 700–75 BCEaiquos1
  2. Latinc. 75 BCE–200 CEaequus1‘level, equal’
  3. Latinc. 75 BCE–200 CEaequō2‘make equal, level or smooth’
  4. Latinc. 75 BCE–200 CEadaequō3‘make equal to’
  5. Medieval Latinc. 600–1500adaequātivus3
  6. Englishtodayadequative3

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin aequo
  2. 2 Wiktionary, Latin adaequo
  3. 3 Wiktionary, English adequative

Earlier history uncertain. See Wiktionary.

Lineage

  1. Old Latinc. 700–75 BCEaiquosWiktionary, Latin aequo
  2. Latinc. 75 BCE–200 CEaequusWiktionary, Latin aequo‘level, equal’
  3. Latinc. 75 BCE–200 CEaequōWiktionary, Latin adaequo‘make equal, level or smooth’
  4. Latinc. 75 BCE–200 CEadaequōWiktionary, English adequative‘make equal to’
  5. Medieval Latinc. 600–1500adaequātivusWiktionary, English adequative
  6. EnglishtodayadequativeWiktionary, English adequative

Linked words

through Proto-Italic *aikʷos

inequality, 10 more

through Old Latin aiquos

equality, inequitable, 11 more

through Latin aequus ‘level, equal’

equal, equity, equitable, egalitarian, 13 more

through Latin aequō ‘make equal, level or smooth’

equation, equate, 2 more

Today it means

adj equivalent or sufficient; adequate.

Sources

Sources: Wiktionary, “adequative”; the older steps come from the Wiktionary entries for Latin aequo, Latin adaequo. 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 / Old Latin aiquos / adequative

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