Where does “Ectocarpus” come from?

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

Ancestry of “Ectocarpus”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ἐκτός	without, outside, out; external, strange, vulgar;...
2	Ancient Greek	γνάθος	jaw; point, edge; type of stone
3	Proto-Indo-European	ǵn̥h₂dʰ-os	—
4	Proto-Indo-European	ǵneh₂dʰ-	—

Words derived from “Ectocarpus”

Ectocarpaceae
Ectocarpales

Every word from Proto-Indo-European ǵneh₂dʰ- →

Ectocarpus — Etymology, Origin & Word History | Etymology Explorer