14 letters · 17 points in Scrabble
noun someone whose age is in the seventies
originFrom Latin septuagenarius (“containing 70”) + -an (suffix forming adjectives and representative nouns), either directly or via French septuagénaire, from Latin septuagenus (“70 each”) + -arius (“-ary”), from Latin septuāginta (“seven tens, 70”).
Etymology from Wiktionary, CC BY-SA 3.0