Anselm Onuorah is doing good work regarding the original Igbo meaning of “Ekwensu” before European/Church contact.
He publishes with various journals of African interdisciplinary studies.
https://www.publishers.anchorbookclubafrica.net/pages/about.html

Here’s his bio from his website.
“Anselm is a philosopher, Author and Human Rights Activist. He is a specialist in African philosophy and has written extensively on African Philosophical Issues with special focus on Igbo Tradition and Cultures. His passion for education and the rejuvenation of African reading spirit led him to convoke the 2017 Pan African Conference on interdisciplinary studies that attracted leading African scholars including Prof. Patrick Lumumba of Kenyan school of law. Anselm is a member of different International Organisations and the CEO of Anchor Publishers and Media Limited, the founder and president of Anchor Book Club Africa.”