Kaidi

Kaidi is an Estonian feminine name, functioning as a vernacular diminutive or pet form of Katariina, the Estonian equivalent of Katherine. Katherine itself derives from the Greek name Aikaterine, whose precise root is debated but is often associated with the Greek word katharos, meaning pure. The name gained widespread European use largely through the veneration of Saint Catherine of Alexandria. Related forms include Kai, Kaie, and Kati, all Estonian shortenings of the same Katherine lineage.