Noun
iyoba (plural iyobas)
A queen mother of the Kingdom of Benin.
By my Coronation today, she is now qualified to be bestowed with the title of IYOBA, (QUEEN MOTHER) which custom allows us to confer posthumously. Source: Internet
Ever since, every Oba of Edo has given his mother the same title, Iyoba of Uselu. Source: Internet