Combination of Rae and the suffix -lyn
Raelin is a modern American invention, likely created by blending the name Rae, a diminutive of Rachel meaning 'ewe', with the popular suffix -lyn or -lin. It follows the contemporary trend of creating rhythmic, two-syllable names that feel familiar yet distinct. Because of its components, it can be interpreted as having roots in Hebrew and Germanic traditions.
Less common today
Raelin isn't in the latest US Top 1000. It last peaked at #3,567 in 2012.
US births per 5-year period, 1990βpresent (SSA data).