Where does “gnathostome” come from?

gnathostome (English) comes from Translingual Gnathostomata, from Ancient Greek γνάθος, from Proto-Indo-European ǵn̥h₂dʰ-os, from Proto-Indo-European ǵneh₂dʰ-.

gnathostome (English): Any vertebrate with jaws, including amphibians,...

Definitions

Any vertebrate with jaws, including amphibians,...

Ancestry of “gnathostome”, step by step

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

Every word from Proto-Indo-European ǵneh₂dʰ- →

gnathostome — Etymology, Origin & Word History | Etymology Explorer