The author argues that the continental name derives from an indigenous toponym Amerrique in Nicaragua, presents linguistic comparisons of place-name endings across Central America, catalogs the many variant forms of Vespucci's name and notes the absence of the Americus form before its first printed appearance, examines geographical, documentary, and testimonial evidence including field descriptions of the Amerrique range, and reviews objections and published critiques while assembling documentary analysis to support the indigenous-origin hypothesis.