__________ was who formed the name Nigeria after the amalgamation of Southern protectorate and Northern protectorate.

The person who formed the name Nigeria after the amalgamation of the Southern and Northern protectorates was Flora Shaw. She was a British journalist and writer who was married to Lord Lugard, the first Governor-General of Nigeria. In 1914, Lord Lugard oversaw the amalgamation of the Northern and Southern protectorates, which created the country now known as Nigeria. Flora Shaw, who was then a colonial correspondent for The Times newspaper, suggested the name "Nigeria" as a way to describe the newly created territory. The name "Nigeria" was derived from the Niger River, which flows through the country, and was suggested by Flora Shaw in an article she wrote for The Times. The name quickly gained acceptance and was adopted as the official name of the country after its amalgamation. In summary, Flora Shaw was the person who formed the name Nigeria after the amalgamation of the Southern and Northern protectorates. She suggested the name "Nigeria" as a way to describe the newly created territory, and the name was quickly adopted and became the official name of the country.