Fastidious Definition

Origin of Fastidious

• From Latin fastidiosus (“passive: that feels disgust, disdainful, scornful, fastidious; active: that causes disgust, disgusting, loathsome”), from fastidium (“a loathing, aversion, disgust, niceness of taste, daintiness, etc.”), perhaps for *fastutidium, from fastus (“disdain, haughtiness, arrogance, disgust”) + taedium (“disgust”). Confer French fastidieux.

  From Wiktionary

• Middle English squeamish, particular, haughty from Old French fastidieux from Latin fastīdiōsus from fastīdium squeamishness, haughtiness probably from fastus disdain

  From American Heritage Dictionary of the English Language, 5th Edition