The Collaborative International Dictionary of English v.0.48:

Concern \Con*cern"\, v. t. [imp. & p. p. Concerned; p. pr. &
   vb. n. Concerning.] [F. concerner, LL. concernere to
   regard, concern, fr. L. concernere to mix or mingle together,
   as in a sieve for separating; con- + cernere to separate,
   sift, distinguish by the senses, and especially by the eyes,
   to perceive, see. See Certain.]
   1. To relate or belong to; to have reference to or connection
      with; to affect the interest of; to be of importance to.
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            Preaching the kingdom of God, and teaching those
            things which concern the Lord Jesus Christ. --Acts
                                                  xxviii. 31.
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            Our wars with France have affected us in our most
            tender interests, and concerned us more than those
            with any other nation.                --Addison.
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            It much concerns a preacher first to learn
            The genius of his audience and their turn.
                                                  --Dodsley.
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            Ignorant, so far as the usual instruction is
            concerned.                            --J. F.
                                                  Cooper.
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   2. To engage by feeling or sentiment; to interest; as, a good
      prince concerns himself in the happiness of his subjects.
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            They think themselves out the reach of Providence,
            and no longer concerned to solicit his favor.
                                                  --Rogers.
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The Collaborative International Dictionary of English v.0.48:

Concerning \Con*cern"ing\, prep.
   Pertaining to; regarding; having relation to; respecting; as
   regards.
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         I have accepted thee concerning this thing. --Gen. xix.
                                                  21.
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         The Lord hath spoken good concerning Israel. --Num. x.
                                                  29.
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The Collaborative International Dictionary of English v.0.48:

Concerning \Con*cern"ing\, a.
   Important. [Archaic]
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         So great and so concerning truth.        --South.
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The Collaborative International Dictionary of English v.0.48:

Concerning \Con*cern"ing\, n.
   1. That in which one is concerned or interested; concern;
      affair; interest. "Our everlasting concernments." --I.
      Watts.
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            To mix with thy concernments I desist. --Milton.
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   2. Importance; moment; consequence.
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            Let every action of concernment to begun with
            prayer.                               --Jer. Taylor.
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   3. Concern; participation; interposition.
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            He married a daughter to the earl without any other
            approbation of her father or concernment in it, than
            suffering him and her come into his presence.
                                                  --Clarendon.
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   4. Emotion of mind; solicitude; anxiety.
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            While they are so eager to destroy the fame of
            others, their ambition is manifest in their
            concernment.                          --Dryden.
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