Pure
Kadie is a modern phonetic spelling of Katy, which originated as a diminutive of Katherine. It traces back to the Greek name Aikaterine, which has long been associated with the Greek word 'katharos', meaning pure.
Less common today
Kadie isn't in the latest US Top 1000. It last peaked at #1,423 in 1990.
US births per 5-year period, 1990βpresent (SSA data).
Singer-songwriter and America's Got Talent semi-finalist
British cellist and member of the Kanneh-Mason musical family