Where does “електропровод” come from?

електропровод (Bulgarian) comes from Serbo-Croatian електро-, from Latin ēlectrum, from Ancient Greek ἤλεκτρον — amber; alloy of gold and silver, electrum.

електропровод (Bulgarian): power transmission line

Definitions

power transmission line

Ancestry of “електропровод”, step by step

Step	Language	Word	Meaning
1	Serbo-Croatian	електро-	electro-
2	Latin	ēlectrum	amber
3	Ancient Greek	ἤλεκτρον	amber; alloy of gold and silver, electrum

Every word from Ancient Greek ἤλεκτρον →Every word from Latin ēlectrum →Every word from Serbo-Croatian електро- →