naturalize

v. t.

  1. To make natural; as, custom naturalizes labor or study.
  2. To confer the rights and privileges of a native subject or citizen on; to make as if native; to adopt, as a foreigner into a nation or state, and place in the condition of a native subject.
  3. To receive or adopt as native, natural, or vernacular; to make one's own; as, to naturalize foreign words.
  4. To adapt; to accustom; to habituate; to acclimate; to cause to grow as under natural conditions.

v. i.

  1. To become as if native.
  2. To explain phenomena by natural agencies or laws, to the exclusion of the supernatural.