Scholar or sky
A modern American invention, Skylinn likely combines the Dutch-rooted 'Skylar' (meaning scholar) with the popular 'Lynn' suffix (meaning lake). It is often associated with the vastness of the sky due to its phonetic similarity to the English word.
Less common today
Skylinn isn't in the latest US Top 1000. It last peaked at #6,895 in 2014.
US births per 5-year period, 1990βpresent (SSA data).