Britain, Canada, New Zealand, Australia, and Ireland spelling of rumor
"The British rumour spread quickly through the village about the upcoming festival being cancelled due to bad weather."
Commonwealth of Nations standard spelling of rumor.
"After years of denial, a new rumour surfaced that the prime minister was secretly planning to resign."
The word comes from the Latin rūmor, meaning "common talk." It traces its roots back to a Proto-Indo-European root related to shouting or roaring.