Of Dax, France; or leader
Daxen is a modern invented name, likely a creative elaboration of the French place-name Dax or the English name Dax. It follows the popular trend of two-syllable names ending in '-en', similar to Jaxon or Daxton. Some interpret it as a variation of the name Dash or a derivative of the word 'dux', meaning leader.
Less common today
Daxen isn't in the latest US Top 1000. It last peaked at #6,638 in 2017.
US births per 5-year period, 1990βpresent (SSA data).