obsecration

noun obsecration

• appeal — If you appeal to someone to do something, you make a serious and urgent request to them.
• entreaty — An earnest or humble request.
• litany — a ceremonial or liturgical form of prayer consisting of a series of invocations or supplications with responses that are the same for a number in succession.
• petition — a formally drawn request, often bearing the names of a number of those making the request, that is addressed to a person or group of persons in authority or power, soliciting some favor, right, mercy, or other benefit: a petition for clemency; a petition for the repeal of an unfair law.
• plea — an appeal or entreaty: a plea for mercy.