Modern invented name, likely a blend of Aaron and Marilyn
Aarilyn is a contemporary American invention, likely created by combining the phonetic elements of the masculine Aaron (meaning high mountain) and the feminine Marilyn (meaning star of the sea). It follows the popular trend of adding the 'lyn' suffix to established names to create a unique feminine variant. Because it is a modern creation, it lacks a singular historical or etymological root.
Fewer than 5 girls were named Aarilyn in 2025.
US births per 5-year period, 1990–present (SSA data).
