Son of Aram (son of Shem), that is, grandson of Shem.
In 1 Chronicles, Aram's sons are simply grouped together as descendants of Shem, and the name is recorded as Meshech.
1 Chronicles 1:17The sons of Shem: Elam, Asshur, Arphaxad, Lud and Aram. The sons of Aram: Uz, Hul, Gether and Meshech.
{{:Genealogy of Shem}}