Son of Maud; or, woman from Magdala
Maddisyn is a modern creative spelling of Madison. It originated as an English surname meaning 'son of Maud,' but it is also frequently associated with the biblical name Madeline, meaning 'of Magdala.'
Less common today
Maddisyn isn't in the latest US Top 1000. It last peaked at #2,341 in 2013.
US births per 5-year period, 1990βpresent (SSA data).