Gracious
Jeven is likely a modern invented name, often considered a variation of Jevan or Jevin. It is frequently associated with the Welsh name Evan or the Hebrew name John, both of which mean 'God is gracious'.
Less common today
Jeven isn't in the latest US Top 1000. It last peaked at #5,745 in 2008.
US births per 5-year period, 1990βpresent (SSA data).