Where does “zingiberi” come from?

zingiberi (Latin) comes from Ancient Greek ζιγγίβερις, from Sauraseni Prakrit 𑀲𑀺𑀁𑀕𑀺𑀯𑁂𑀭, from Old Tamil 𑀇𑀜𑁆𑀘𑀺𑀯𑁂𑀭𑁆, from Old Tamil 𑀯𑁂𑀭𑁆, from Proto-Dravidian *wēr.

Ancestry of “zingiberi”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ζιγγίβερις	ginger
2	Sauraseni Prakrit	𑀲𑀺𑀁𑀕𑀺𑀯𑁂𑀭	ginger
3	Old Tamil	𑀇𑀜𑁆𑀘𑀺𑀯𑁂𑀭𑁆	—
4	Old Tamil	𑀯𑁂𑀭𑁆	—
5	Proto-Dravidian	*wēr	—

Every word from Proto-Dravidian *wēr →