tussenvoegsel

Etymology
From, from +.

Noun

 * 1)  infix
 * 2) a part of a person's name (usually of Dutch origin) that comes between the first name and the last name (such as van der or de)
 * 1) a part of a person's name (usually of Dutch origin) that comes between the first name and the last name (such as van der or de)