"Blend of Jax and -ton"
The name Jaxston is commonly a male name from the "English" origin.
Jaxston is a modern American coinage that first appears in US birth records in 2003. It is formed from Jax, the short form of Jackson or Jaxon, with the -ton ending familiar from English surnames used as given names, such as Braxton and Paxton. The spelling with the added s mirrors the s in Jackson.
The pronunciation of Jaxston is JAX-stun.