Combination of Rea and the suffix Lynn
Realynn is a modern American invention, likely created by blending the name Rea with the popular suffix -lynn. Rea can be a variant of Rhea, meaning 'flowing' in Greek, while Lynn is a Welsh-derived name meaning 'lake'.
Less common today
Realynn isn't in the latest US Top 1000. It last peaked at #7,915 in 2020.
US births per 5-year period, 1990βpresent (SSA data).