(in Hindu cosmology) one of the four ages of humankind, together lasting over 4 million years and marked by a progressive decline in human vitality and morals
Word origin
C18: from Sanskrit: yoke, race of men, era; see yoke
Yuga in American English
(ˈjʊgə)
noun
any of the four ages or eras of the world according to Hindu religious writings, each period being shorter, darker, and less righteous than the preceding