Pure
Kattie is a diminutive form of Katherine, which originates from the Greek name Aikaterine. While its exact etymology is debated, it is most commonly associated with the Greek word 'katharos', meaning pure. This specific spelling was moderately popular in the late 19th century but is now considered a rare vintage variant.
Less common today
Kattie isn't in the latest US Top 1000. It last peaked at #1,782 in 1990.
A character in the classic novel 'What Katy Did' (alternate spelling used in some early editions) Β· What Katy Did
US births per 5-year period, 1990βpresent (SSA data).