Where does “ゼッド” come from?

ゼッド (Japanese) comes from English zed, from Middle English zed, from Old French zede, from Latin zēta, from Ancient Greek ζῆτα, from Phoenician 𐤆, from Egyptian ?.

Ancestry of “ゼッド”, step by step

Step	Language	Word	Meaning
1	English	zed	The name of the Latin-script letter Z; Something...
2	Middle English	zed	—
3	Old French	zede	—
4	Latin	zēta	—
5	Ancient Greek	ζῆτα	zeta, the name for the sixth letter Ζ, ζ of the...
6	Phoenician	𐤆	this
7	Egyptian	?	—

Every word from Egyptian ? →Every word from Phoenician 𐤆 →Every word from Ancient Greek ζῆτα →