[f. prec. + -SHIP.] The position or function of an arbitrator.

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1667.  Lond. Gaz., ccxiv/1. The Arbitratorship between the two Crowns of Spain and France.

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1882.  H. Brownson, in O. Brownson’s Wks., I. 22. The popes … exercised often an arbitratorship in disputes between sovereign and sovereign.

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