octogenarian

noun

oc·​to·​ge·​nar·​i·​an ˌäk-tə-jə-ˈner-ē-ən 

: a person whose age is in the eighties

The octogenarian uses a cane for walking.

octogenarian adjective

Examples of octogenarian in a Sentence

Recent Examples on the Web

This is a joy limited to our select club of septuagenarians and octogenarians. —Patricia Steckler, Baltimore Sun, 8 Nov. 2024

Countless studies have shown that octogenarians and above are still rounding the bases on the regular. —Marah Eakin, Vulture, 17 Sep. 2024

Tate, the Republican octogenarian, wasn’t the first to utter an obscenity. —Julia Prodis Sulek, The Mercury News, 3 Nov. 2024

The octogenarian now has his own museum in Arles, France, and this past August a six-decade survey of his work opened at the Art Gallery of New South Wales, Sydney. —Pablo Larios, Artforum, 1 Nov. 2024

Word History

Etymology

Latin octogenarius containing eighty, from octogeni eighty each, from octoginta eighty, from octo eight + -ginta (akin to viginti twenty) — more at vigesimal

First Known Use

1815, in the meaning defined above

Kids Definition

octogenarian

noun

oc·​to·​ge·​nar·​i·​an ˌäk-tə-jə-ˈner-ē-ən 

: a person whose age is between 80 and 89

Medical Definition

octogenarian

noun

oc·​to·​ge·​nar·​i·​an ˌäk-tə-jə-ˈner-ē-ən 

: a person whose age is in the eighties

octogenarian adjective