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'.
US births per 5-year period, 1990–present (SSA data).
