Where does “tartáreo” come from?

tartáreo (Portuguese) comes from Latin tartareus, from Latin tartarus, from Ancient Greek Τάρταρος, from Ancient Greek Ταρτησσός, from Ancient Greek Ἡράκλειοι Στῆλαι.

tartáreo (Portuguese): Tartarean

Definitions

Tartarean

Ancestry of “tartáreo”, step by step

Step	Language	Word	Meaning
1	Latin	tartareus	—
2	Latin	tartarus	A river of Venetia that used to flow into the Adriatic Sea, now called Tartaro
3	Ancient Greek	Τάρταρος	Tartarus
4	Ancient Greek	Ταρτησσός	Tartessus; Tartessos
5	Ancient Greek	Ἡράκλειοι Στῆλαι	—

Every word from Ancient Greek Ἡράκλειοι Στῆλαι →Every word from Ancient Greek Ταρτησσός →Every word from Ancient Greek Τάρταρος →