ˌyüdēˈmōnēə noun
also eu·dai·mo·nia -ˌdīˈ-, -(ˌ)dāˈ-
( -s )
Etymology: Greek eudaimonia, from eudaimon-, eudaimōn having a good attendant or indwelling spirit, lucky, happy (from eu- + daimon-, daimōn spirit) + -ia -y — more at demon
1. : well-being , happiness
2. Aristotelianism : a life of activity governed by reason