Son of Jack
Jaxxton is a modern American elaboration of the name Jaxon or Jackson. It ultimately derives from the English surname meaning 'son of Jack,' with Jack being a medieval diminutive of John, which means 'God is gracious.'
Less common today
Jaxxton isn't in the latest US Top 1000. It last peaked at #5,544 in 2019.
US births per 5-year period, 1990βpresent (SSA data).