What is the name of the thing that connects the table top and the legs?

Hello! One side of the table leg should be called tenon, and the other side of the table is called tenon. I hope I can help you. The technology of the table with pure mortise and tenon structure requires exquisite woodworking skills, and the mortise and tenon should not be loose at all. Yingxian wooden tower is a traditional tenon-mortise combination technology, without nails, and all structures are tenon-mortise engagement.