Webster’s Revised Unabridged Dictionary · 1913
Concenter
Con·cen′ter, Con·cen′tre, v. i. [imp. & p. p. Concentered or Concentred; p. pr & vb. n. Concentering or Concentring.] [F. concentrer, fr. L. con- + centrum center. See Center, and cf. Concentrate] To come to one point; to meet in, or converge toward, a common center; to have a common center.
God, in whom all perfections concenter. Bp. Beveridge.
Con·cen′ter, Con·cen′tre, v. t. To draw or direct to a common center; to bring together at a focus or point, as two or more lines; to concentrate.
In thee concentering all their precious beams. Milton.
All is concentered in a life intense. Byren.