(Mercosur*, for "Mercado Común del Sur"[0]; Mercator was a geographer from the 16th century[1]).

[0] https://ec.europa.eu/eurostat/statistics-explained/index.php... ("Glossary:Mercosur")

[1] https://en.wikipedia.org/wiki/Gerardus_Mercator ("Gerardus Mercator")