Ex·pos·tu·late v. i. [imp. & p. p. Expostulated p. pr. & vb. n. Expostulating.] To reason earnestly with a person on some impropriety of his conduct, representing the wrong he has done or intends, and urging him to make redress or to desist; to remonstrate; -- followed by with.
Men expostulate with erring friends; they bring accusations against enemies who have done them a wrong. --Jowett (Thuc. ).
Syn: -- To remonstrate; reason. See Remonstrate.
Ex·pos·tu·late, v. t. To discuss; to examine. [Obs.]
What majesty should be, what duty is. --Shak.
v : reason with (somebody) for the purpose of dissuasion