BioConcepts

natural deathmors naturalis (lat.); mort naturelle (fr.); natürlicher Tod (ger.)

• Death resulting from old age or disease, not brought about by accident, violence, poison, etc. (OED 2003)
  category death see also accidental death violent death

  c. 417

  Sed ne Seleucus quidem tanta uictoria inpune laetatus est: nam neque ipse post LXXVII annos quietem naturalis mortis inuenit, sed extortam sibi infeliciter uitam uelut immatura morte finiuit

  Orosius, Historiarum aduersum paganos libri vii: Cl. 0571, vol. I, lib. 3, cap. 23, par. 63.

  c. 420

  nec dicit quod, nisi mors naturalis advenerit, emori non poteris, sed huc venire non poteris.

  Macrobius Ambrosius Theodosius, Commentarii in Somnium Scipionis: lib. 1, cap. 13, par. 18.

  c. 1522

  Nor ȝit by natural ded peryschit sche.

  Douglas, G. (transl.) (c. 1522). Virgil, Æneid (1957): iv, xii, 106 (acc. to OED 2003).

  1632

  Naturalis mors

  Mencel, J. (1632). Thanatologia: sive de morte tractatus theoreticus et practicus: 31.