Javindo, also known by the pejorative name Krontjong, is a Dutch-based creole language spoken on Java, Indonesia, such as Semarang. The name Javindo is a portmanteau of Java and Indo, the Dutch word for a person of mixed Indonesian and Dutch descent. This contact language developed from communication between Javanese-speaking mothers and Dutch-speaking fathers in Indo families. Its main speakers were Indo-Eurasian people. Its grammar was based on Javanese, and its vocabulary was based on the Dutch lexicon but pronounced in a Javanese manner. It shows simplification of morphological verb system from Javanese grammar such as merging verb class, disappearance of verbal subcategories.