Where does “Acanthaster” come from?

Acanthaster (Translingual) comes from Ancient Greek ἀστήρ, from Ancient Greek καταστερίζω, from Ancient Greek κατά, from Ancient Greek οὐρέω, from Ancient Greek -έω, from Proto-Indo-European -éyeti, from Proto-Indo-European -yeti — Creates transitive imperfective verbs from roots.

Acanthaster (Translingual): genus|certain starfish, called crown-of-thorns starfish}}

Definitions

genus|certain starfish, called crown-of-thorns starfish}}

Ancestry of “Acanthaster”, step by step

Acanthaster traces back through two separate lines of ancestry.

via Ancient Greek ἀστήρ

Step	Language	Word	Meaning
1	Ancient Greek	ἀστήρ	a celestial body; illustrious person; starfish
2	Ancient Greek	καταστερίζω	to place among the stars; I put among the stars
3	Ancient Greek	κατά
4	Ancient Greek	οὐρέω	I make water, urinate; I pass with the water; I...
5	Ancient Greek	-έω	Used to form verbs from nouns, adjectives and...
6	Proto-Indo-European	-éyeti	Forms causative imperfective verbs from roots;...
7	Proto-Indo-European	-yeti	Creates transitive imperfective verbs from roots

via Ancient Greek ἄκανθα

Step	Language	Word	Meaning
1	Ancient Greek	ἄκανθα	A thorny plant; A thorn, spine, or prickle;...
2	Ancient Greek	ἄνθος	flower, blossom, bloom; froth, scum; bloom, peak
3	Proto-Hellenic	ántʰos	flower, blossom
4	Proto-Indo-European	h₂éndʰos	bloom
5	Proto-Indo-European	-os	Creates action nouns or result nouns from verbs;...

Every word from Proto-Indo-European -yeti →Every word from Ancient Greek -έω →Every word from Proto-Indo-European -éyeti →