Favor and grace
A modern compound name combining the Hebrew Hannah, meaning favor or grace, with the English word Grace. It essentially doubles the sentiment of divine favor and elegance, creating a rhythmic and virtuous choice.
Less common today
Hannahgrace isn't in the latest US Top 1000. It last peaked at #7,205 in 2014.
US births per 5-year period, 1990βpresent (SSA data).