Sannyasin ( Sanskrit saṃnyāsin [root form], saṃnyāsī [nominative], in the romanization mostly Samnyasi [n] or Sannyasi [n]) comes from Sanskrit and is a derivative (with the in-suffix, analogous to yoga + -in> yogin 'the yogi, yoga practitioner') from saṃyāsa 'giving up, renunciation' (verbal prefixes sam + ni + verb root as + suffix - a ).
Sannyas is a way of life determined by the spiritual quest. In Hinduism, sannyasin denotes a person who has renounced the world and lives in complete lack of property. His whole pursuit is directed towards moksha , the liberation from karma and from the cycle of birth and death through union with God or the highest reality. Some wandering sannyasins are content with a place near a temple; others live in caves or are completely homeless on the move. Sadhus living ascetic and unbound , like u. a. Hindu monks called are sannyasins. Sannyasins traditionally wear orange robes.
Sannyas is also called the last of the four stages of an ideal Hindu life, which the Dharma , the Hindu ethic, provides as an ideal: In the last phase of life it is therefore appropriate to break away from everything worldly and become homeless, from mild gifts nourishing to devote to the search for salvation.