It comes from the Greek pappas: Father.
He will hold the title of Pope Emeritus - Retired Pope. He will still be addressed as the Holy Father.
No - the position and the title go together. I would imagine the current Pope will revert to a former title, such Your Eminence, as he remains a Prince of the Church.
His title and name will be Pope Emeritus Benedict XVI.
He is known as the Pope Emeritus, which is a retired pope.
His title was Prefect of the Congregation for the Doctrine of the Faith and from 2002 until his election as pope, he was also Dean of the College of Cardinals.
God's last name is/was "Pope", which is where the title of Pope is derrived. The Pope's are "children of God".
If you are referring to Pope Francis, he was the Cardinal Archbishop of Buenos Aires.
Pope Emeritus Benedict XVI
He could but chose to take the title of Pope Emeritus instead.
His Holiness Pope Emeritus Benedict XVI
Pope Leo X
Pope St. Leo I, the Great, in the 5th century.