Erragal's name is
etymologically related to that of
Erra and it has been suggested that it can be translated as "the great Erra". The shorter
theonym in turn goes back to the
root ḥrr, possibly "scorching", which is attested in various
Semitic languages, including
Akkadian. It has been argued that Erragal and Erra were identical with each other due to equations between them postdating the
Old Babylonian period, or that Erragal was a "fusion
hypostasis" of Erra and
Nergal, comparable to double theonyms designating a single deity common in
Ugaritic texts such as
Nikkal-wa-Ib,
Kothar-wa-Khasis or
Qudšu-wa-Amrur, but according to Frans Wiggermann Erragal's role in the
Mesopotamian pantheon was distinct and he should be considered a separate god in origin, rather than just a form of Erra. This is also accepted as a possibility by Frank Simons. However, Kynthia Taylor disagrees with Wiggermann and argues that due to the proximity of these two deities in god lists and the fact that Erragal is well attested in texts written in the
Emesal dialect of
Sumerian it is plausible they developed under similar circumstances, with Erragal originally being an
epithet applied to Erra in Emesal texts which eventually came to be viewed as a separate figure. Further related theonyms include Errakal, Errakalkal, Errakar and Erkal. The first of them is presumed to functionally be a double of Erragal, and based on distribution in known texts might represent an
Akkadian spelling of the same name, following the well attested phenomenon of interchange between
voiced and
voiceless consonants in Sumerian
loanwords in this language. The form Erragal can be found for example in the Old Babylonian
Weidner god list and in a god list from
Susa, while Errakal occurs in later
An = Anum (tablet VI, line 10) as well as in
Atra-Hasis and the
Epic of Gilgamesh. It has been argued that Erragal was originally associated with
storms and with the destruction caused by them. According to Nicla de Zorzi a passage in the section of
Enūma Anu Enlil focused on the weather can be translated as an omen pertaining to him, "Erragal will bring hard times to the land". However, he is portrayed as a benevolent in most texts referencing him. He functioned as an astral deity. In the incantation series
Ḫulbazizi ("Evil be gone!") he is invoked alongside the
Pleiades,
Sirius and
Jupiter for apotropaic purposes. He has also been described as a god linked to the
underworld. ==Associations with other deities==