CONCENTRING
Verb
concentring
present participle of concentre
Source: Wiktionary
CONCENTRE
Con*cen"ter, Con*cen"tre, v. i. [imp. & p. p. Concentered or
Concentred (; p. pr & vb. n. Concentering or Concentring (.] Etym:
[F. concentrer, fr. L. con- + centrum center. See Center, and cf.
Concentrate]
Definition: 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.
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition