Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.

Class II. Words Relating to Space
Section II. Dimensions
3. Centrical Dimensions
1. General

222. Centrality.

   NOUN:CENTRALITY, centricalness, centricality, center or centre; middle [See Middle]; focus [See Focus].
  center of -gravity, – pressure, – percussion, – oscillation, – buoyancy &c.; metacenter.
  CORE, kernel; nucleus, nucleolus; heart, pole, axis, bull’s-eye, nave, hub, navel, umbilicus; marrow, pith; backbone; vertebra, vertebral column; hotbed.
  CONCENTRATION (convergence) [See Convergence]; centralization; symmetry; metropolis.
   VERB:BE CENTRAL &c. adj.; converge [See Convergence].
  RENDER CENTRAL, centralize, concentrate; bring to a focus.
   ADJECTIVE:CENTRAL, centrical; middle [See Middle]; axial, pivotal, nuclear, nucleate, centric, focal, umbilical, concentric; middlemost; rachial, rachidial or rachidian; spinal, vertebral; metropolitan.
   ADVERB:MIDDLE; midst; centrally &c. adj.
   QUOTATION:Boston State-house is the hub of the solar system.—Holmes