Modern American creation, likely combining the prefix Sha- with Nitra.
Shanitra is a modern inventive name common in African American naming traditions. It likely combines the popular prefix 'Sha-' with the name Nitra, which may be inspired by the city in Slovakia or simply chosen for its rhythmic, melodic sound.
Less common today
Shanitra isn't in the latest US Top 1000. It last peaked at #5,320 in 1991.
US births per 5-year period, 1990βpresent (SSA data).