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.
US births per 5-year period, 1990–present (SSA data).