The Collaborative International Dictionary
Concenter \Con*cen"ter\, Concentre \Con*cen"tre\, v. i. [imp. & p. p. Concentered or Concentred; p. pr & vb. n. Concenteringor 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.
Wiktionary
vb. (context American spelling English) (alternative spelling of concentred nodot=t English); (en-past of: concenter)
Usage examples of "concentered".
I have seen all rights, all powers concentered in certain classes, and the mass of the people passive and dependent.
It is permissible, then, if the tenderness has not been mutual, but has been mainly concentered in the male.