How did Maine get its name?

In a paper read before the American Antiquarian Society Hamilton R. Staples said that the name of Maine was given to that State descriptively, since in the original charter it was considered "the Mayne Land of New-England."

Maine got its name from when British sailors called it the main land. The spelling is an old English version of the word main. It got its nickname The Pine Tree State because 80 percent of the state is covered in forest .

That is at least one possibility. The Official answer from the State Legislature is that it is named after an ancient French Province.