To come up with its new name, South State Bank looked for something that sounds, well, old. First Financial Holdings, the parent of North Carolina Bank & Trust (NCBT), South Carolina Bank & Trust (SCBT) and three other bank brands, this month announced it would rebrand all of its operations as South State Bank. The Columbia, S.C.-based bank has been known as NCBT in Charlotte ever since acquiring The Scottish Bank here in 2007. In an interview this week, NCBT President Robin Lyle says the new name…