Riina

Riina is a Finnish and Estonian feminine name that developed as a short form of Katariina, the Scandinavian and Finnish rendering of Katherine, itself derived from the Greek name Aikaterine, whose root meaning remains debated but is often associated with the Greek word katharos, meaning pure. The name functions independently in both Finnish and Estonian naming traditions, where short forms of longer names frequently become established given names in their own right. Related forms include Riitta and the full form Katariina, as well as international variants such as Rina and Karin.