The Collaborative International Dictionary of English v.0.48:
Commandment \Com*mand"ment\, n. [OF. commandement, F.
1. An order or injunction given by authority; a command; a
charge; a precept; a mandate.
A new commandment I give unto you, that ye love one
another. --John xiii.
2. (Script.) One of the ten laws or precepts given by God to
the Israelites at Mount Sinai.
3. The act of commanding; exercise of authority.
And therefore put I on the countenance
Of stern commandment. --Shak.
4. (Law) The offense of commanding or inducing another to
violate the law.
The Commandments, The Ten Commandments, the Decalogue, or
summary of God's commands, given to Moses at Mount Sinai.