Adeja is of African origin, specifically from the Yoruba culture of Nigeria and Benin. It means "the crown becomes beautiful" or "crown increases in beauty". This name reflects the Yoruba belief in the divine essence of all people, suggesting that Adeja's life will be adorned with grace and beauty as she grows and develops.
The name Adeja experienced varied popularity over the years with a peak of 16 births in 2002 and a decline after 2004, reaching an average of 8 births per year from 2007 onwards.