octogenarian

== English == === Etymology === From Latin octōgēnārius + -an (suffix forming adjectives and representative nouns), either directly or via French octogénaire, from Latin octōgēnus (“80 each”) + -ārius (“-ary”), from octōgintā (“eight tens, 80”). === Pronunciation === (General American) IPA(key): /ˌɑktəd͡ʒɪˈnɛɹiən/ (Received Pronunciation) IPA(key): /ˌɒktəd͡ʒɪˈnɛəɹɪən/ === Noun === octogenarian (plural octogenarians) 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. ==== Derived terms ==== === Adjective === octogenarian (not comparable) Of or related to eightysomethings. Coordinate terms: vicenarian, tricenarian, quadragenarian, quinquagenarian, semicentenarian, hexagenarian, sexagenarian, septuagenarian, nonagenarian, centenarian, semisupercentenarian, supercentenarian ==== Synonyms ==== octogenary (obsolete) ==== Translations ==== === References === “octogenarian, n. and adj.”, in OED Online ⁠, Oxford: Oxford University Press, 2022.