Native to or originating in the place where it is found; not introduced from elsewhere.
From Greek 'autos' (self) and 'chthon' (earth), with the Latin-style suffix -ous. This is the most common modern English form of the adjective, formed by combining the Greek root with a Latinate ending.
Scientists love this word because it's precise: an autochthonous species evolved right where you find it, not migrated there. But here's the wild part—humans used this word to claim superiority by saying we were literally born from our homeland, which was complete fiction used to justify keeping out immigrants.
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