Caja

Caja is a Danish feminine name functioning as a diminutive or pet form of Katarina, the Scandinavian form of Katherine, which itself derives from the Greek name Aikaterine. The deeper roots of Katherine are debated, with proposed connections to the Greek word katharos, meaning pure, though earlier origins may be non-Greek. Caja remains rare in Denmark and is also found as a variant in other Nordic and German-speaking areas. Related forms include Kaja, Katja, and Kajsa.