- Today's Word
Eudaemonia
yoo-dee-MOH-nee-uh
Definition
- (noun) A state of happiness or flourishing achieved through living a life of virtue and purpose.
Example
For the philosopher, true eudaemonia was found not in wealth but in the pursuit of wisdom and good character.
Fun Fact
Eudaemonia originates from the Greek word eudaimon, meaning “good spirit” or “well-being.” Central to Aristotle’s philosophy, it describes the ultimate goal of human life: flourishing through moral excellence and rational thought. Unlike fleeting happiness, eudaemonia is about sustained fulfillment, making it a cornerstone concept in ethical and philosophical discussions.
(adjective) Deliberately untrustworthy and deceitful; guilty of betraying trust or breaking faith.
The perfidious advisor had been leaking confidential strategy to competitors for years, all while accepting promotions and praise from the company he was quietly destroying.
Perfidious derives from the Latin perfidiosus, meaning “treacherous,” rooted in perfidia — “faithlessness” — built from per- (“through” or “away”) and fides (“faith” or “trust”). The same root fides gives us fidelity, confide, and fiduciary — making perfidious the dark twin of an entire family of words built on trust and loyalty. It entered English in the 16th century and has carried its sense of calculated, deliberate betrayal ever since.