Where does “الْقَادُوس” come from?

الْقَادُوس (Arabic) comes from Ancient Greek κάδος, from Hebrew כַּד.

Ancestry of “الْقَادُوس”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	κάδος	pail, bucket, jar, cask, vessel for water or...
2	Hebrew	כַּד	—