Posted on Saturday, January 3, 2009, at 5:03 pm, by Dr. Allardyce Hurlbutt.
Sedigitus (Lat. sex, six; digitus, finger, toe): having six fingers or toes.
Source: Max Hohnerlein, Neues Namenbüchlein: Ableitung und Erklärung von 4200 Vornamen (Stuttgart, n.d. [1927]), 50.