kootje
Kootje is a term that can appear in Dutch-language usage as a diminutive form or nickname. It does not denote a single, widely recognized concept, but rather functions as an affectionate or informal variant derived from a base such as Koot, Koos, or Koosje. Because Dutch uses the diminutive suffix -je to create familiar forms, kootje can serve as a personal nickname among friends, family, or colleagues in informal speech.
In practice, kootje may be encountered as a nickname for a person whose name provides a suitable
Etymology for kootje is tied to the broader Dutch pattern of forming diminutives with -je, rather than