Where does “nāpus” come from?

nāpus (Latin) comes from Ancient Greek νᾶπυ, from Demotic snwpt.

Ancestry of “nāpus”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	νᾶπυ	mustard
2	Demotic	snwpt	—

nāpus — Etymology, Origin & Word History | Etymology Explorer