Where does “ז־ק־ן” come from?

ז־ק־ן (Hebrew) comes from Hebrew זקן, from Proto-Semitic *ḏaḳan-.

Ancestry of “ז־ק־ן”, step by step

Step	Language	Word	Meaning
1	Hebrew	זקן	beard; old person; elder, sage
2	Proto-Semitic	*ḏaḳan-	—

ז־ק־ן — Etymology, Origin & Word History | Etymology Explorer