Kail is an uncommon, yet appealing given name of American origin. It's derived from the Hawaiian word 'ka'i' meaning 'to surf'. This name has gained popularity due to its unique sound and association with outdoor adventure and water sports.
"The name Kail experienced a significant rise in popularity from the late 1990s to the mid-2010s, with over 25 births annually between 1996 and 2014. However, it has since seen a decline, with fewer than 15 births per year since then."