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

Instead, Connolly will join multiple House septuagenarians and octogenarians in senior roles during the next congressional term. —Ewan Palmer, Newsweek, 19 Dec. 2024

Opposite the middle-aged acoustic guitar players and singers—succeeded by a hunky chain-smoking violinist in a camel suit—is an octogenarian with all his teeth missing. —Alexandra Pereira, Vogue, 16 Dec. 2024

The octogenarian was said to have enjoyed strolling the Jersey Boardwalk and exploring empty parking lots. —Brian Niemietz, New York Daily News, 10 Dec. 2024

There are children eating from high tables downstairs and octogenarians playing cards upstairs. —Joe Rexrode, The Athletic, 24 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