Word.ws English Dictionary

nonagenary

nonagenary adjective: of or related to the number ninety.

Adjective

nonagenary (not comparable)

  1. (rare) Of or related to the number ninety.

Noun

nonagenary (plural nonagenaries)

  1. (obsolete) Synonym of square or quadrature, a rising at a 90 degree angle to the position of another heavenly body, particularly the sun.
    • As for Mars, as he is neerer to the Sunne, so feeleth he the Sunne beames by a quadrant aspect, to wit, ninetie degrees: wherupon that motion tooke the name, called the first and second Nonagenarie, from both risings.1601, Pliny, translated by Philemon Holland, The Historie of the World, volume I, page 10
    Synonyms:
    square or quadrature

Synonyms of nonagenary

  • square or quadrature

Forms of nonagenary

pluralnonagenaries

Origin of nonagenary

From Latin nōnāgēnārius (“containing 90”) either directly or via Middle French nonagénaire, from Latin nōnāgēnī (“90 each”) + -ārius (“-ary”), from nōnāgintā (“nine tens, 90”).

Questions about nonagenary

What does nonagenary mean?
Nonagenary means of or related to the number ninety.
What part of speech is nonagenary?
Nonagenary can be an adjective or a noun.

Words near nonagenary in the dictionary

  1. nonageing
  2. nonageist
  3. nonagenarian
  4. nonagenarians
  5. nonagenaries
  6. nonagenary
  7. nonagency
  8. nonagenda
  9. nonagent
  10. nonagented
  11. nonagentive

Source and license

Adapted from Wiktionary: nonagenary (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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