Where does “topazi” come from?

topazi (Occitan) comes from Latin topazius, from Ancient Greek τοπάζιον, from Ancient Greek τόπαζος, from Ancient Greek ταβάσιος — kind of stone.

topazi (Occitan): topaz

Definitions

Step	Language	Word	Meaning
1	Latin	topazius	topaz
2	Ancient Greek	τοπάζιον	peridot
3	Ancient Greek	τόπαζος	gem of green hue, probably chrysolite or peridot
4	Ancient Greek	ταβάσιος	kind of stone