Unknown; possibly a modern elaboration of Day or Adeline
Dayelin is a modern American invention, likely created by blending the English word 'Day' with the popular suffix '-elin' or '-line'. It may also be a creative variation of names like Daelyn or Adeline. Due to its recent emergence, it lacks a traditional etymological history.
Fewer than 5 girls were named Dayelin in 2025.
US births per 5-year period, 1990–present (SSA data).
