Where does “antitritium” come from?

antitritium (English) comes from English tritium, from Ancient Greek τρίτος, from Ancient Greek τρι-, from Ancient Greek τρεῖς, from Proto-Hellenic tréyes, from Proto-Indo-European *tréyes.

antitritium (English): The antimatter equivalent of tritium

Definitions

The antimatter equivalent of tritium

Ancestry of “antitritium”, step by step

antitritium traces back through two separate lines of ancestry.

via English tritium

Step	Language	Word	Meaning
1	English	tritium	A radioactive isotope of the element hydrogen (symbol T, 3H or) having one proton and two neutrons
2	Ancient Greek	τρίτος	third
3	Ancient Greek	τρι-	tri-
4	Ancient Greek	τρεῖς	three
5	Proto-Hellenic	tréyes	three
6	Proto-Indo-European	*tréyes	—

via English anti

Step	Language	Word	Meaning
1	English	anti	Opposed to something; That has a torsion angle...
2	English	anti-	Against, hostile to; Contrasting with the norm;...
3	Ancient Greek	ἀντι-	anti-, against; like, reminiscent of
4	Ancient Greek	ᾰ̓ντῐ́	opposite

Every word from Proto-Indo-European *tréyes →Every word from Proto-Hellenic tréyes →Every word from Ancient Greek τρεῖς →