judeo-christian

from WordNet (r) 3.0 (2006)

Judeo-Christian
    adj 1: being historically related to both Judaism and
           Christianity; "the Judeo-Christian tradition"

from The Collaborative International Dictionary of English v.0.48

Judeo-Christian \Judeo-Christian\ adj.
   having origins in both Judaism and Christianity; of or
   pertaining to Christianity; as, the Judeo-Christian
   tradition.
   [WordNet 1.5]