That's cool! I googled around and found that this must be the Mbabaram language, an extinct language once spoken in East Australia.

https://en.wikipedia.org/wiki/Mbabaram_language#Word_for_%22...

> The similarity is a complete coincidence: the English and Mbabaram languages developed on opposite sides of the planet over the course of tens of thousands of years. This and other false cognates have been cited by typological linguist Bernard Comrie as a caution against deciding that languages are related based on a small number of lexical comparisons.