naturalize
verb
[ ˈnatʃ(ə)rəlʌɪz ]
• admit (a foreigner) to the citizenship of a country.
• "he was born in a foreign country and had never been naturalized"
• establish (a plant or animal) so that it lives wild in a region where it is not indigenous.
• "the species was naturalized in Britain as early as 1620"
• alter (an adopted foreign word) so that it conforms more closely to the phonology or orthography of the adopting language.
• "the stoccafisso of Liguria was naturalized in Nice as stocoficada"
• regard as or cause to appear natural.
• "globalization has been naturalized as the inevitable pathway to economic prosperity and success"
Origin:
mid 16th century: from French naturaliser, from Old French natural (see natural).