Where does “electrode” come from?

Electrode comes from Ancient Greek ἤλεκτρον, which originally referred to amber and its property of attracting light objects when rubbed.

electrode (English): the terminal through which electric current...

Definitions

Step	Language	Word	Meaning
1	Ancient Greek	ὁδός	threshold; road, path, way; journey, trip,...
2	Proto-Hellenic	*hodós	—

electrode — Etymology, Origin & Word History | Etymology Explorer