the.com/sanctimony

means A show of holiness or moral superiority that's performed for an audience rather than genuinely felt.

from From Latin sanctimonia, 'sacredness' or 'holiness,' built from sanctus ('holy, sacred') — the same root behind saint and sanctuary. The Latin word was sincere, naming actual sanctity. English borrowed it in the 1500s, and over time the meaning curdled: the word kept the robes of holiness but lost the substance, coming to mean holiness worn as a costume rather than lived as a fact.