Stone worker or bricklayer
Maysin is a modern phonetic spelling of the English occupational surname Mason. It refers to a person who works with stone or brick, derived from the Old French word 'masson'.
Less common today
Maysin isn't in the latest US Top 1000. It last peaked at #6,991 in 2013.
US births per 5-year period, 1990βpresent (SSA data).