Where does “etnonacionalismo” come from?

etnonacionalismo (Portuguese) comes from Portuguese nacionalismo, from Portuguese nacional, from French national, from French nation, from Middle French nation, from Old French nacion, from Latin nātiō, from Latin nātus — to produce, to beget, to give birth.

etnonacionalismo (Portuguese): ethnonationalism doctrine, movement or position of those who defend the right of a certain ethnic group to constitute themselves as a nation