Cyneburgs meadow or royal meadow
Kinzly is a modern American spelling variant of Kingsley. It derives from the Old English elements 'cyne', meaning royal, and 'leah', meaning woodland, clearing, or meadow. While the original surname was masculine, this phonetic spelling is used almost exclusively for girls.
Less common today
Kinzly isn't in the latest US Top 1000. It last peaked at #8,423 in 2015.
US births per 5-year period, 1990βpresent (SSA data).