nonagenarian

[ non-uh-juh-nair-ee-uh n, noh-nuh- ]
/ ˌnɒn ə dʒəˈnɛər i ən, ˌnoʊ nə- /

adjective

of the age of 90 years, or between 90 and 100 years old.

noun

a nonagenarian person.

Origin of nonagenarian

1795–1805; < Latin nōnāgēnāri(us) containing ninety, consisting of ninety (nōnāgēn(ī) ninety each + -ārius -ary) + -an
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for nonagenarian

British Dictionary definitions for nonagenarian

nonagenarian

/ (ˌnəʊnədʒɪˈnɛərɪən) /

noun

a person who is from 90 to 99 years old

adjective

of, relating to, or denoting a nonagenarian

Word Origin for nonagenarian

C19: from Latin nōnāgēnārius, from nōnāginta ninety
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012