Carmi — Who is here mentioned, because he was the son of Zimri, who is also called Zabdi, Joshua 7:1. Achar — Called Achan, Joshua 7:1, and here Achar, with a little variation for greater significancy: for Achar signifies a troubler.
Related Commentaries of 1 Chronicles 2:7
1 Chronicles 2:7
7 And the sons of Carmi; Achar,c the troubler of Israel, who transgressed in the thing accursed.