Nigerianization
/nʌɪˌdʒɪərɪənʌɪˈzeɪʃn/(also Nigerianisation)
noun
The process of making something (more) Nigerian in character; (sometimes) specifically the replacement of non-Nigerians by native-born Nigerians in positions of authority or in the workforce.
Origin
1950s. From Nigerian + -ization.