Querent

from The Collaborative International Dictionary of English v.0.48
Querent \Que"rent\, n. [L. querens, p. pr. of queri to
   complain.] (O. Eng. Law)
   A complainant; a plaintiff.
   [1913 Webster]
    
from The Collaborative International Dictionary of English v.0.48
Querent \Que"rent\, n. [L. quaerens, p. pr. of quaerere to
   search for, to inquire.]
   An inquirer. [Obs.] --Aubrey.
   [1913 Webster]
    

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