What is the nationality of the surname chesonis?

Answer 1

Originally, the name is a dialectal transposition from 'Chesham' (previously known as Cestreham), which is a place in Buckinghamshire, England

That above name comes from the old English word, caester, which means 'heap of stones'.

Some people used this as their surname, for example "Mary of Chesham". Bearing in mind that back then, the surname was basically either your place of origin or your family business.

(famous unrelated example - Leonardo da vinci - Da means "of". Vinci is a town in Italy).

Through history, Chesham became pronounced as "Chessan" and "Chesson", since language then was passed on through speech, because not many people could write.

Later on, a family with the surname "Chesson" migrated from England to North America. For reasons unknown, some parts of the Chesson family changed their name to Chesonis, probably because they didn't want their names historically attached to an English place.

So it depends - the historic origin is England. The rebirth/editing of the name is American.