Definition: The term "cjis.old" is a Greek phrase used to mean "old age." This expression can be traced back to an ancient tradition in Greece, where it was believed that the elderly were considered not only physically but also spiritually matured, akin to the practice of renouncing worldly pursuits and becoming focused on spiritual matters. The term is often associated with the age of 60 or beyond as a threshold beyond which individuals are said to be "old."