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Yuga

American  
[yoog-uh] / ˈyʊg ə /

noun

Hinduism.
  1. an age of time.

  2. any of four ages, the Satya, the Treta, the Dvapara, and the Kali, each worse than the last, forming a cycle due to begin again when the Kali has come to an end.


Yuga British  
/ ˈjʊɡə /

noun

  1. (in Hindu cosmology) one of the four ages of mankind, together lasting over 4 million years and marked by a progressive decline in the vitality and morals of men

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Yuga

Borrowed into English from Sanskrit around 1775–85