Battle or spirit of battle
Caydn is a modern creative spelling of the Welsh name Caden. It is derived from the surname Mac CadΓ‘in, which stems from the Old Irish name CadΓ‘n, likely meaning 'little battle'.
Less common today
Caydn isn't in the latest US Top 1000. It last peaked at #7,810 in 2003.
US births per 5-year period, 1990βpresent (SSA data).