A solemn and earnest appeal to someone to do something.

Roget 535: affirmance, affirmation; statement, allegation, assertion, predication, declaration, word, averment; confirmation.    asseveration, adjuration, swearing, oath, affidavit; deposition etc. (record) 551; avouchment; assurance; protest, protestation; profession; acknowledgment etc. (assent) 488; legal pledge, pronouncement; solemn averment, solemn avowal, solemn declaration.    remark, observation; position etc. (proposition) 514, saying, dictum, sentence, ipse dixit [Lat.].    emphasis; weight; dogmatism etc. (certainty) 474; dogmatics etc. 887.    ... meer laten zien