Son of Jack; God is gracious
A modern creative spelling of Jackson, which originated as an English surname meaning 'son of Jack.' The name Jack itself is a medieval diminutive of John, a Hebrew name meaning 'God is gracious.'
Less common today
Jacksyn isn't in the latest US Top 1000. It last peaked at #4,516 in 2012.
US births per 5-year period, 1990βpresent (SSA data).