the.com/rumour

means An unverified piece of information passed from person to person, believed and spread before anyone checks if it's actually true.

from From Old French 'rumor,' rooted in Latin 'rumor' meaning noise, clamor, or common talk — the din of a crowd. The word has always carried that sense of collective murmur, the sound of many voices passing something along, long before anyone traces where it started.