Where does “eletroerosão” come from?

eletroerosão (Portuguese) comes from Portuguese erosão, from Latin erosio, from Latin erodo, from Latin rōdō, from Proto-Indo-European Hreh₃d- — to scrape.

eletroerosão (Portuguese): electroerosion

Definitions

electroerosion

Ancestry of “eletroerosão”, step by step

Step	Language	Word	Meaning
1	Portuguese	erosão	erosion
2	Latin	erosio	eating away
3	Latin	erodo	I gnaw away; corrode
4	Latin	rōdō	to gnaw, nibble, bite; eat or waste away, corrode, consume; erode
5	Proto-Indo-European	Hreh₃d-	to scrape

Every word from Proto-Indo-European Hreh₃d- →Every word from Latin rōdō →Every word from Latin erodo →