An Australian Aboriginal language's word for 'dog' is, by pure coincidence, 'dog'

Mbabaram, a now-extinct Aboriginal language of northern Queensland, happened to use the word 'dog' for a dog, identical to English, despite the two languages having no historical contact or common ancestry anywhere in the tens of thousands of years separating them. Linguists cite it as the textbook example of a chance false cognate, proving that words sounding and meaning the same across languages are not, by themselves, evidence of any real relationship.

— R. M. W. Dixon, A Grammar of Mbabaram — Pacific Linguistics, 1991