Pure
Kaydie is a modern phonetic variant of Katie or Katy, which are diminutives of Katherine. It ultimately derives from the Greek name Aikaterine, most commonly associated with the meaning 'pure'.
Less common today
Kaydie isn't in the latest US Top 1000. It last peaked at #8,750 in 2008.
US births per 5-year period, 1990–present (SSA data).
