Emily Dickinson Lexicon

EX-POS'TU-LATE, v.i. [L. expostulo, ex and postulo, to require, probably from the root of posco.]

To reason earnestly with a person, on some impropriety of his conduct, representing the wrong he has done or intends, and urging him to desist, or to make redress; followed by with. The emperor's embassador expostulated with the king, that he had broken the league with the emperor. Hayward.