samsara (n.)youdaoicibaDictYouDict[samsara 词源字典]
"endless cycle of death and rebirth, transmigration of souls," 1886, from Sanskrit samsara "a wandering through," from sam-, prefix denoting completeness (from the root of same), + sr- "to run, glide," from PIE root *ser- (2) "to flow" (see serum).[samsara etymology, samsara origin, 英语词源]