The Collaborative International Dictionary
Eudemonics
Eudemonics \Eu`de*mon"ics\, Eudaemonics \Eu`d[ae]*mon"ics\, n.
That part of moral philosophy which treats of happiness; the
science of happiness; -- contrasted with aretaics.
--J.
Grote.
Wiktionary
eudemonics
n. (alternative form of eudaemonics English)