Sky or island of clouds
A modern American invention likely created by blending the nature name Sky with the popular 'lie' suffix found in names like Kylie or Riley. It is often associated with the Isle of Skye in Scotland, which derives from the Old Norse word for cloud.
Less common today
Skylie isn't in the latest US Top 1000. It last peaked at #3,513 in 2012.
US births per 5-year period, 1990βpresent (SSA data).