Where does “Alcathous” come from?

Alcathous (Latin) comes from Ancient Greek Ἀλκάθοος, from Ancient Greek θοός, from Ancient Greek θέω, from Ancient Greek θεϝ-, from Proto-Indo-European dʰew- — to die, pass away; to run, flow.

Alcathous (Latin): son of Pelops and founder of Megara

Definitions

son of Pelops and founder of Megara

Ancestry of “Alcathous”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Ἀλκάθοος	Alcathous, a Trojan soldier slain by Idomeneus
2	Ancient Greek	θοός	quick, swift; sharp, pointed
3	Ancient Greek	θέω	I run; I fly
4	Ancient Greek	θεϝ-	—
5	Proto-Indo-European	dʰew-	to die, pass away; to run, flow

Every word from Proto-Indo-European dʰew- →Every word from Ancient Greek θεϝ- →Every word from Ancient Greek θέω →