ŠEŠ

The cuneiform ŠEŠ sign, as a capital letter (majuscule), is a Sumerogram for Akkadian language ahu,[2] for "brother".

Sumerogram ŠEŠ has a high usage in the mid-14th century BC, ~1350-1330 BC Amarna letters from the brother kingdoms to the Pharaoh's Egypt (Egypt named Mizri in the letters).

The brother kingdoms were Babylon, Alashiya, and Mittanni, where King Tushratta authored 13 El Amarna letters.

The Sumerogram ŠEŠ, and its syllabic uses (sis through šiš) are also found in the Epic of Gilgamesh, with usage numbers as follows: sis-(3 time), šes-(6), šeš-(3), šiš-(1), ŠEŠ-(6).

For letter EA 35 from the King of Alashiya, for a total of thirteen paragraphs, the Sumerogram is used 27 times.