Where does “onocrótalo” come from?

onocrótalo (Spanish) comes from Latin onocrotalus, from Ancient Greek ὀνοκρόταλος, from Ancient Greek κρόταλον, from Ancient Greek κροτέω — to rattle.

onocrótalo (Spanish): a pelican, especially the great white pelican

Definitions

a pelican, especially the great white pelican

Ancestry of “onocrótalo”, step by step

Step	Language	Word	Meaning
1	Latin	onocrotalus	pelican
2	Ancient Greek	ὀνοκρόταλος	pelican
3	Ancient Greek	κρόταλον	clapper, rattle, castanet
4	Ancient Greek	κροτέω	to rattle

Every word from Ancient Greek κροτέω →Every word from Ancient Greek κρόταλον →Every word from Ancient Greek ὀνοκρόταλος →