Greek, early 19th century
A system of ethics that bases moral value on the likelihood of actions producing happiness.
“Eudaemonism” entered English in the 19th century from the Greek “εὐδαιμονία,” meaning happiness, with the suffix “-ism” to indicate a system of belief or practice. “Eudaemonism” is based on the Greek term “eudaemonia,” introduced by Aristotle. Aristotle’s “eudaemonia” described the positive condition of doing and living well. It was not, in fact, a synonym for happiness, but rather it described a greater state of positive existence, which combined wisdom, contemplation, virtue, and other beneficial attributes for personal success.
Example: Through all the anxiety and drama, I detected a true sense of eudaemonism in viewing the opening session of the January 6 Committee hearings.