Why did Mark Twain name his character Huckleberry?

Could you elaborate on the origins behind Mark Twain's decision to name his beloved character Huckleberry? Was there a specific inspiration or meaning behind the choice? Was it a whimsical selection, or did it hold deeper significance in the context of the story? Understanding the naming conventions of the time and Twain's writing style could shed light on this intriguing aspect of his masterpiece.