Slender, fair, or pure
Keilyn is a modern American invention, likely created by blending the Irish-rooted name Kay with the popular suffix -lyn. It may also be interpreted as a variant of Caelan, meaning slender or fair, or as a combination of Kay (pure) and Lynn (lake).
Less common today
Keilyn isn't in the latest US Top 1000. It last peaked at #2,820 in 2011.
US births per 5-year period, 1990–present (SSA data).
