Where does “Anti” come from?

Anti (Estonian) comes from Estonian Andres, from Latin Antonius, from Ancient Greek Ἄντων.

Ancestry of “Anti”, step by step

Step	Language	Word	Meaning
1	Estonian	Andres	Andrew
2	Latin	Antonius	—
3	Ancient Greek	Ἄντων	—

Anti — Etymology, Origin & Word History | Etymology Explorer