Battle or fighter
A modern phonetic spelling of the Welsh name Caden. It is derived from the surname Mac CadΓ‘in, which likely stems from the Old Irish word for battle.
Less common today
Caydyn isn't in the latest US Top 1000. It last peaked at #7,678 in 2008.
US births per 5-year period, 1990βpresent (SSA data).