Where does “Trochoidea” come from?

Trochoidea (Translingual) comes from Translingual Trochus, from Ancient Greek τροχός, from Proto-Indo-European dʰrogʰos, from Proto-Indo-European dʰreǵʰ- — to drag, draw, pull; to draw, drag.

Trochoidea (Translingual): superfamily

Definitions

superfamily

Ancestry of “Trochoidea”, step by step

Step	Language	Word	Meaning
1	Translingual	Trochus	genus
2	Ancient Greek	τροχός	wheel; hoop, ring; island
3	Proto-Indo-European	dʰrogʰos	—
4	Proto-Indo-European	dʰreǵʰ-	to drag, draw, pull; to draw, drag

Every word from Proto-Indo-European dʰreǵʰ- →Every word from Proto-Indo-European dʰrogʰos →Every word from Ancient Greek τροχός →