Wikipedia
Tiyamiyu
The name Tiyamiyu is a derivative from the Yoruba word "Ti iya mi loju" which implies my mother is the greatest or dearest. Oral traditional authority has it that the name which is similar to Tiamiyu but different in meaning was first adopted by a male—in Iperu, Ogun state of Nigeria—whom was a pagan and upon conversion to Islam wanted a unique name but "funky".
The man named Amusan is the grandson of Bisuga (whose father was one of the earlier settlers with Akesan- Iperu), a chief of Iperu from the Amororo royal quarters in Iperu whom gave evidence during the quest for Remo independence from Ijebu ode.
It was Amusan, the grand child who was married to Sefinatu— that adopted the name Tiyamiyu., as against the Muslim variant 'Tiamiyu'