Original: Some etymologists derive it from a dialectal pronunciation of '' bandore '' , though recent research suggests that it may come from a Senegambian term for a bamboo stick formerly used for the instrument 's neck .
Simplified: The name banjo may have come from a Kimbundu word : mbanza , but it could have also come from a Senegambian word for the bamboo stick used for the banjo 's neck .