MODAL

adjective Etymology: Medieval Latin ~is, from Latin modus Date: 1569 of or relating to ~ity in logic, containing provisions as to the mode of procedure or the manner of taking effect, of or relating to a musical mode, of or relating to structure as opposed to substance, of, relating to, or constituting a grammatical form or category characteristically indicating predication of an action or state in some manner other than as a simple fact, of or relating to a statistical mode, ~ly adverb