Where does “zeta” come from?

zeta (Latin) comes from Ancient Greek ζῆτα, from Phoenician 𐤆, from Egyptian ?.

Ancestry of “zeta”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ζῆτα	zeta, the name for the sixth letter Ζ, ζ of the...
2	Phoenician	𐤆	this
3	Egyptian	?	—

zeta — Etymology, Origin & Word History | Etymology Explorer