Hollow or hay meadow
Hailyn is a modern American invention, likely a blend of the name Hailey and the popular suffix -lyn. It draws its roots from the Old English 'heg' (hay) and 'leah' (clearing or meadow), or potentially the name Hallie meaning 'dweller at the hall meadow'.
About 23 girls were named Hailyn in 2025.
US births per 5-year period, 1990–present (SSA data).
