• Origin: Tswana & Sotho
• Meaning: “lion.”
• Gender: masculine

The name is from the South African languages, Tswana & Sotho, meaning, “lion.” It was a popular name among the chiefs of the Rolong tribe in what is now Botswana.

It should also be noted that Tau is the 19th letter in the Greek alphabet.

Completely unrelated, but perhaps should be considered is that this is the name of an evil spirit in Guarani mythology

Sources

• https://www.behindthename.com/name/tau
• http://www.sesotho.org/names.htm
• https://www.fodors.com/community/africa-and-the-middle-east/african-word-for-lion-559896/
• https://en.wikipedia.org/wiki/Rolong_tribe
• https://en.wikipedia.org/wiki/Tau_(mythology)