Cynes meadow or royal field
Kinslei is a modern spelling variation of Kingsley. It derives from the Old English elements 'cyne', meaning royal, and 'leah', meaning a meadow, clearing, or field. While the original surname was traditionally masculine, this creative spelling is used primarily for girls.
Less common today
Kinslei isn't in the latest US Top 1000. It last peaked at #6,604 in 2020.
US births per 5-year period, 1990βpresent (SSA data).