Where does “mastigote” come from?

mastigote (English) comes from Ancient Greek μάστιξ — whip, scourge; scourge, plague.

Ancestry of “mastigote”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	μάστιξ	whip, scourge; scourge, plague

mastigote — Etymology, Origin & Word History | Etymology Explorer