Gift of God; lake
A modern American invention likely created by blending the traditional name Matthew or Madeline with the popular suffix -lyn. It combines the Hebrew roots for 'gift of God' with the Welsh or English associations of 'lake' or 'waterfall' found in the -lyn ending.
Less common today
Mattilyn isn't in the latest US Top 1000. It last peaked at #3,895 in 2012.
US births per 5-year period, 1990–present (SSA data).
