noun, plural mun·dan·i·ties.
Origin of mundanity
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
c.1500, from Middle French mondanité or directly from Medieval Latin mundanitatem (nominative mundanitas), from Late Latin mundanus "belonging to the world" (see mundane).
Online Etymology Dictionary, © 2010 Douglas Harper