Tussenvoegsel
In a Dutch name, a tussenvoegsel (Dutch pronunciation: [ˈtʏsə(ɱ)ˌvuxsəl] ; lit. 'intersertion' or 'that which is interserted') is a family name affix positioned between a person's given name and the main part of their family name. There are similar concepts in many languages, such as Celtic family name prefixes, French particles, and the German von.