The Name COSSWA was founded by one or more of Swedish priests who had to write down completely unknown French names in old church books: they wrote down what they heard, the pronounciation of the genuin Name COCHOIS. The letter W is not part of the scandinavian alphabeth- the use of it is a finger tip that COSSWA is of foreign nature.
The Name Cochois (Cochoi, Cochoy) is spread all over western Europe and USA by emigrating Vallons, specially from the area of Sedan and other small villages in the Ardennes mountains. The Cochois families were French reformed People, they belong to those who later become the common name HUGUENOTTES.
Origin of the Cochois families was the landscape CAUX which is part of the NORMANDIE in the North of France.. So people living in the Ardennes Region whose genuin home place was CAUX where called
CAUX - de la CAUX - le CAUXOIS - CAUXOIS -Cauchois - Cochois. You´ll find all variations in France. The French pronounciation of all is identically. So the name Cosswa/Cochois belongs to those, giving a hint of the geographical origin of ist bearer.
From Flensburg/Germany: Kurt G. Jörgensen, Certified Genealogist