Pure
Kalena is a Hawaiian form of Karen, which itself is a Scandinavian diminutive of Katherine. It carries the long-standing etymological association with the Greek word 'katharos', meaning pure.
Less common today
Kalena isn't in the latest US Top 1000. It last peaked at #2,025 in 2017.
Brazilian actress and model
US births per 5-year period, 1990βpresent (SSA data).