- -ment -ment, [F. -ment, L. -mentum.] A suffix denoting that which does a thing; an act or process; the result of an act or process; state or condition; as, aliment, that which nourishes, ornament, increment; fragment, piece broken, segment; abridgment, act of abridging, imprisonment, movement, adjournment; amazement, state of being amazed, astonishment. [1913 Webster]
The Collaborative International Dictionary of English. 2000.