centagenarian

English

Etymology

Incorrectly formed by analogy with words like octogenarian (from octōgintā (“eighty”)) and nonagenarian (from nōnāgintā (“ninety”)). However there is no "centaginta"; the correct Latin is centum (“one hundred”)).

Noun

centagenarian (plural centagenarians)

1. (nonstandard) A centenarian.