Rye clearing or courageous
Rilei is a modern phonetic spelling of the Irish surname Riley. It traditionally derives from the Gaelic 'Raghallach', meaning courageous or valiant, or from the Old English 'ryge leah', referring to a rye field.
Less common today
Rilei isn't in the latest US Top 1000. It last peaked at #9,864 in 2009.
US births per 5-year period, 1990βpresent (SSA data).