Hay clearing or meadow
Heily is a modern phonetic variant of the English surname and given name Hayley. It derives from the Old English elements 'heg' (hay) and 'leah' (clearing, meadow, or field), originally denoting someone who lived near a hay meadow.
Less common today
Heily isn't in the latest US Top 1000. It last peaked at #3,152 in 2008.
US births per 5-year period, 1990βpresent (SSA data).