Where does “קַדִּישׁ” come from?

קַדִּישׁ (Hebrew) comes from Aramaic קַדִּישׁ — holy.

Ancestry of “קַדִּישׁ”, step by step

Step	Language	Word	Meaning
1	Aramaic	קַדִּישׁ	holy

קַדִּישׁ — Etymology, Origin & Word History | Etymology Explorer