[2] He was originally the tutelary god of Borsippa, near Babylon, and appears in the name of an ensi (governor) of the area from the Ur III period, Puzur-Tutu.
[3] Tutu is still attested as a distinct deity in the role of the tutelary god of Borsippa during the reign of Hammurabi.
[6] In Enuma Elish, Tutu is one of the names bestowed upon Marduk,[6] seemingly one connected with Babylon's role as a center of refurbishing and ritually reviving damaged divine statues.
"[8] According to Wilfred G. Lambert, the use of Tutu as a name of Marduk ceased in the first millennium BCE, when it started to be used to refer to Nabu instead.
[9] Nabu nonetheless started to be regarded as the tutelary god of Borsippa in the first millennium BCE.