Where does “ecto-” come from?

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

ecto- (English): outside

Definitions

  1. outside

Ancestry of “ecto-”, step by step

StepLanguageWordMeaning
1Ancient Greekἐκτόςwithout, outside, out; external, strange, vulgar;...
2Ancient Greekγνάθοςjaw; point, edge; type of stone
3Proto-Indo-Europeanǵn̥h₂dʰ-os—
4Proto-Indo-Europeanǵneh₂dʰ-—

Words derived from “ecto-”

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