Pure
Kabrina is a modern American elaboration of Katrina, which itself is a German and Dutch diminutive of Katherine. It ultimately derives from the Greek name Aikaterine, most commonly associated with the concept of purity.
Less common today
Kabrina isn't in the latest US Top 1000. It last peaked at #1,576 in 1993.
US births per 5-year period, 1990βpresent (SSA data).