Why did Clement of Alexandria say that the name of Jesus, Iesous, has a Greek origin, not a Hebrew one?

Did Clement of Alexandria actually believe that Jesus was called *Iesous* in Greek and that it wasn't a translation of the Hebrew? Wikipedia cites the *Catholic Encyclopedia*'s entry on the [Origin of the Name of Jesus Christ](http://www.newadvent.org/cathen/08374x.htm) : > [Cyril of Jerusalem], however, appears to agree with Clement of Alexandria in considering the word *Iesous* as of Greek origin ([*The Pedagogue* III.12](http://www.newadvent.org/fathers/02093.htm)) But this doesn't seem to be addressed in that section of *The Pedagogue*.