"Blend of Cash and ton"
The name Cashton is commonly a male name from the "American" origin.
Cashton is a modern American formation that joins the given name Cash with the -ton ending familiar from English place-derived names such as Ashton and Preston. It first appears in United States birth records in 1999, which fits a recent coinage rather than an inherited name. No meaning is attached to the elements beyond the name Cash itself.
The pronunciation of Cashton is CASH-tun.