Follower of Christ
Kristyne is a modern spelling variant of Christine or Christina. It ultimately derives from the Greek word 'christos', which was used to translate the Hebrew 'messiah', meaning 'anointed one'.
Less common today
Kristyne isn't in the latest US Top 1000. It last peaked at #3,840 in 1990.
US births per 5-year period, 1990βpresent (SSA data).