Where does “Notropis” come from?

Notropis (Translingual) comes from Ancient Greek τρόπις, from Ancient Greek γνάθος, from Proto-Indo-European ǵn̥h₂dʰ-os, from Proto-Indo-European ǵneh₂dʰ-.

Notropis (Translingual): genus, small freshwater fish of North America}}

Definitions

genus, small freshwater fish of North America}}

Ancestry of “Notropis”, step by step

Notropis traces back through two separate lines of ancestry.

via Ancient Greek τρόπις

Step	Language	Word	Meaning
1	Ancient Greek	τρόπις	keel
2	Ancient Greek	γνάθος	jaw; point, edge; type of stone
3	Proto-Indo-European	ǵn̥h₂dʰ-os	—
4	Proto-Indo-European	ǵneh₂dʰ-	—

via Ancient Greek νῶτον

Step	Language	Word	Meaning
1	Ancient Greek	νῶτον	back, the rear part of the body; chine of an...

Every word from Proto-Indo-European ǵneh₂dʰ- →Every word from Proto-Indo-European ǵn̥h₂dʰ-os →Every word from Ancient Greek γνάθος →