Where does “Acorus” come from?

Acorus (Translingual) comes from Latin acorus, from Ancient Greek ἄκορος — sweet flag.

Ancestry of “Acorus”, step by step

Step	Language	Word	Meaning
1	Latin	acorus	an aromatic plant, perhaps sweet flag or calamus
2	Ancient Greek	ἄκορος	sweet flag

Acorus — Etymology, Origin & Word History | Etymology Explorer