Island of reeds; combination of Rodney and the suffix -isha
Rodneisha is a modern American invention, likely created by combining the English name Rodney with the popular African-American suffix -isha. Rodney itself is derived from an English place name meaning 'Hroda's island' or 'island of reeds'.
Less common today
Rodneisha isn't in the latest US Top 1000. It last peaked at #5,474 in 1996.
US births per 5-year period, 1990βpresent (SSA data).