eudaemonism
Concise Oxford English Dictionary © 2008 Oxford University Press:
eudaemonism /juːˈdiːmənɪz(ə)m/ (also eudemonism)
▶noun a system of ethics that bases moral value on the likelihood of actions producing happiness.
– derivatives
eudaemonist noun,
eudaemonistic adjective.
eudaemonist noun,
eudaemonistic adjective.
– origin C19: from Gk eudaimonismos ‘system of happiness’, from eudaimōn ‘happy’, from eu ‘well’ + daimōn ‘guardian spirit’.
'eudaemonism' also found in these Oxford entries:

