Source : Webster's Revised Unabridged Dictionary (1913)

Decalogue \Dec"a*logue\ (?; 115), n. [F. d['e]calogue, L.
   decalogus, fr. Gr. ?; de`ka ten + ? speech, ? to speak, to
   say. See {Ten}.]
   The Ten Commandments or precepts given by God to Moses on
   Mount Sinai, and originally written on two tables of stone.

Source : WordNet®

Decalogue
     n : the biblical commandments of Moses [syn: {Ten Commandments}]