"Blend of Jon and Michael"
The name Jonmichael is commonly a male name from the "American" origin.
Jonmichael is a compound name made by joining Jon, an English short form of Jonathan or a spelling of John, and Michael, a name long established in English. The two parts are written together without a hyphen, which points to an American construction from existing name stock rather than to a name inherited as a unit from an older tradition. It is best described as a modern combination name rather than as a variant of either element on its own.
The pronunciation of Jonmichael is JON-my-kul.