About the name of ROOT

Hello,

I hope my question here does not violate the rules of the forum, as it not about technical problem.
I’m always curious about the meaning of the name ROOT. i read somewhere that ROOT stand for R with Object Oriented, is it true?

Best,
Hoa.

https://root.cern.ch/root/roottalk/roottalk98/0718.html

thanks a lot, I should improve my searching skill