Rejoicing or joyful lake
A modern American blend combining the English word 'Joy' with the popular suffix '-lyn'. It carries the literal sentiment of happiness paired with the traditional Welsh-derived suffix often associated with lakes.
Less common today
Joylyn isn't in the latest US Top 1000. It last peaked at #10,367 in 1990.
US births per 5-year period, 1990βpresent (SSA data).