资料来源 : Webster's Revised Unabridged Dictionary (1913)

Autochthony \Au*toch"tho*ny\, n.
   An aboriginal or autochthonous condition.

资料来源 : WordNet®

autochthony
     n : nativeness by virtue or originating or occurring naturally
         (as in a particular place) [syn: {indigenousness}, {endemism}]