rumor (n.)youdaoicibaDictYouDict[rumor 词源字典]
late 14c., from Old French rumor "commotion, widespread noise or report" (Modern French rumeur), from Latin rumorem (nominative rumor) "noise, clamor, common talk, hearsay, popular opinion," related to ravus "hoarse," from PIE *reu- "to bellow." Related: Rumorous. Rumor mill is from 1887. Dutch rumoer, German Rumor are from French.[rumor etymology, rumor origin, 英语词源]
rumor (v.)youdaoicibaDictYouDict
1590s, "spread a rumor; spread by way of rumor," from rumor (n.). Related: Rumored; rumoring.