Western lake or western pool
A modern American invention combining the cardinal direction 'West' with the popular suffix 'lyn'. It likely refers to a geographical location or a 'western lake', following the trend of nature-inspired compound names.
Less common today
Westlyn isn't in the latest US Top 1000. It last peaked at #1,875 in 2017.
US births per 5-year period, 1990βpresent (SSA data).
Daughter of actor Josh Brolin