Artificial intelligent assistant

centremost

ˈcentremost, a. rare.
  [a superlative form from centre 17; cf. middlemost, topmost.]
  Most central; midmost.

1866 Neale Sequences & H. 146 The spice-fields..that girdle the centremost mountain. 1871 Joaquin Miller Songs of Italy (1878) 53 In the centremost star Of all whirling stars.

Oxford English Dictionary

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