CestuyCes"tuy\ or Cestui \Ces"tui\, pron. [Norm. F.] (Law) He; the one. Cestuy que trust[norm. F.], a person who has the equitable and beneficial interest in property, the legal interest in which is vested in a trustee. --Wharton. Cestuy que use[Norm. F.], a person for whose use land, etc., is granted to another.
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