Son of Finlay or fair-haired hero
Makenly is a modern American invention, likely derived from the Scottish surname McKinley. It combines the popular 'Ma-' prefix with the rhythmic 'kenly' suffix, often associated with the Gaelic name Finlay, meaning 'fair hero'.
Less common today
Makenly isn't in the latest US Top 1000. It last peaked at #6,430 in 2014.
US births per 5-year period, 1990βpresent (SSA data).