Son of Madoc; fortunate
Maddex is a modern American spelling variation of the Welsh name Maddox. It is derived from the Welsh personal name Madoc, which is rooted in the word 'mad' meaning 'fortunate' or 'good'.
Less common today
Maddex isn't in the latest US Top 1000. It last peaked at #1,278 in 2012.
US births per 5-year period, 1990–present (SSA data).
