Rebellious angel or bitter angel
A modern compound name likely blending Maria and Angela or the suffix -ly. Maria is of Hebrew origin meaning bitter or beloved, while Angela is of Greek origin meaning messenger or angel. It is particularly popular in Puerto Rican and Latin American communities as a creative elaboration.
Less common today
Mariangely isn't in the latest US Top 1000. It last peaked at #13,228 in 2001.
US births per 5-year period, 1990βpresent (SSA data).