autocthon

Noun

autochthon (plural autochthons or autochthones)

1. (formal) The earliest inhabitant of an area; an indigenous person.
   • The Foreigner by his Intercourse with an Autocthon has an Autocthon Progeny. Wherever a type is found in the population of a country, there it is still found in spite of innumerable crossings; […]1901, “Jacobus X” [pseudonym], The Basis of Passional Psychology: A Study of the Laws of Love in Man and the Lower Animals, Paris: Charles Carrington, →OCLC, page 279
2. A large mass of rock in the place of its original formation, rooted to its basement (foundation rock) as opposed to an allochthon or nappe which has shifted from the place of formation; an autochthonous rock formation.
   • These rocks are lithically identical with the Normanskill in the allochthon but differ from the correlative Hortonville or Walloomsac Slates […] of the autochthon. […] In the light of Warthin's findings and the absence of evidence to the contrary, the pelitic rocks that geometrically overlie the...1967, E-An Zen, “Introduction”, in Time and Space Relationships of the Taconic Allochthon and Autochthon (Special GSA Papers; no. 97), New York, N.Y.: Geological Society of America, →OCLC, page 6
3. A term referring to mortals and immortals who have sprung, fully-formed, from the soil, rocks and trees. Mythical characters, such as Erichthonius (a son of Hephaestus and Gaia, and raised by Athena), and Cecrops I, are two most well-known examples.