"Ten Commandments," late 14c., from Latin decalogus, from Greek dekalogos, from the phrase hoi deka logoi used to translate "Ten Commandments" in Septuagint. See deca- + Logos.
decadent
decaffeinate
decagon
decahedron
decal
Decalogue
Decameron
decamp
decant
decanter
decapitalize