Where does “molester” come from?

molester (French) comes from Latin molestare, from Latin molestus, from Latin mōlēs.

molester (French): To molest; To maul

Definitions

Step	Language	Word	Meaning
1	Latin	molestare	—
2	Latin	molestus	troublesome, irksome, grievous, annoying,...
3	Latin	mōlēs	—

molester — Etymology, Origin & Word History | Etymology Explorer