supernationalism
/ˌsuːpəˈnaʃ(ə)nəlɪz(ə)m/ /ˌsuːpəˈnaʃ(ə)n(ə)lɪz(ə)m/ /ˌsuːpəˈnaʃən(ə)lɪz(ə)m/noun
1Political activity or governance at a level higher than that of the nation state; the advocacy of this.
2Extreme or excessive nationalism; ultranationalism.
Origin
Early 20th century. From super- + nationalism. With sense 1 compare earlier supernational, supernationality.