Where does “saharin” come from?

saharin (Serbo-Croatian) comes from Medieval Latin saccharum, from Ancient Greek σάκχᾰρον — sugar.

Ancestry of “saharin”, step by step

Step	Language	Word	Meaning
1	Medieval Latin	saccharum	—
2	Ancient Greek	σάκχᾰρον	sugar

saharin — Etymology, Origin & Word History | Etymology Explorer