Dear lake or beloved lake
A modern American compound name likely combining the English word 'dear' or the name Dara with the popular suffix 'lyn'. It carries the connotation of a beloved person or a peaceful body of water.
Less common today
Daralyn isn't in the latest US Top 1000. It last peaked at #7,452 in 1990.
US births per 5-year period, 1990βpresent (SSA data).