nativization

English Wikipedia has an article on:

nativization

Wikipedia

• nativisation

From native +‎ -ization.

nativization (uncountable)

1. (linguistics) The process whereby a language acquires native speakers.
2. (linguistics) The process whereby a language in a new region acquires localised features, as by contact with pre-existing languages of the region, or in response to the local environment.
   • 2014, James Lambert, “Diachronic stability in Indian English lexis”, in World Englishes, page 120:

     The nativisation of English in India has resulted in the creation of many new coinages or neologisms.

3. (linguistics, phonology) The process whereby a loan word’s pronunciation is adapted to the sound system of the borrowing language.