octogenarian

English

Etymology

From Latin octōgēnārius + -an (“forming adjectives and representative nouns”), either directly or via French octogénaire, from Latin octogeni (“80 each”) + -arius (“-ary”), from octōgintā (“eight tens, 80”).

Pronunciation

• (General American) IPA^(key): /ˌɑktədʒɪˈnɛɹiən/
• (Received Pronunciation) IPA^(key): /ˌɒktədʒɪˈnɛəɹɪən/

Noun

octogenarian (plural octogenarians)

1. Synonym of eightysomething: a person between 80 and 89 years old.
   • 1929, Robert Dean Frisbee, The Book of Puka-Puka (republished by Eland, 2019; p. 75f; emphasis in original):

     Mama was by no means the only grandma present, for the octogenarians had turned out en masse from their huts and lean-tos and were paddling about, diving and splashing as unconcernedly as though they really belonged in the sea rather than on land.

   • 1941 October, “Notes and News: Finsbury Park Station”, in Railway Magazine, page 466:

     Finsbury Park station, one of the most important L.N.E.R. suburban junctions, is now an octogenarian.

   • 1951, IBM Corp., Proceedings, Computation Seminar (page 13)

     To replace logarithmic tables with natural tables required some time. This seems like a modern age, yet I am not an octogenarian and I can remember the dying gasp of the logarithmic table as the standard method of computation. I have seen the desk calculator become a necessary instrument for every scientist who is doing quantitative work.

Adjective

octogenarian (not comparable)

1. Of or related to eightysomethings.

   Coordinate terms: vicenarian, tricenarian, quadragenarian, quinquagenarian, semicentenarian, hexagenerian, sexagenarian, septuagenarian, nonagenarian, centenarian, semisupercentenarian, supercentenarian

Synonyms

• octogenary (obsolete)

Translations

Of or related to people between 80 and 89 years of age

• Catalan: octogenari
• Cebuano: oktohenariyo
• Finnish: kahdeksissakymmenissä oleva, kahdeksankymppinen
• French: octogénaire (fr) m or f

• German: achtzigjährig (de)
• Hungarian: nyolcvanas (éveiben járó), nyolcvanas (hu), nyolcvanvalahány éves, nyolcvanadik születésnapját betöltött
• Old Norse {t|non|áttrœðr}}

References

• “octogenarian, n. and adj.”, in OED Online ⁠, Oxford, Oxfordshire: Oxford University Press, 2022.