Definitions for "Plead"
To present an answer, by allegation of fact, to the declaration of a plaintiff; to deny the plaintiff's declaration and demand, or to allege facts which show that ought not to recover in the suit; in a less strict sense, to make an allegation of fact in a cause; to carry on the allegations of the respective parties in a cause; to carry on a suit or plea.
To allege or cite in a legal plea or defense, or for repelling a demand in law; to answer to an indictment; as, to plead usury; to plead statute of limitations; to plead not guilty.
To allege or adduce in proof, support, or vendication; to offer in excuse; as, the law of nations may be pleaded in favor of the rights of ambassadors.
To argue in support of a claim, or in defense against the claim of another; to urge reasons for or against a thing; to attempt to persuade one by argument or supplication; to speak by way of persuasion; as, to plead for the life of a criminal; to plead with a judge or with a father.
To discuss, defend, and attempt to maintain by arguments or reasons presented to a tribunal or person having uthority to determine; to argue at the bar; as, to plead a cause before a court or jury.
A formal statement, generally written, propounding the case of action or the defence of a legal case.
Plead means to ask for fervently, to beg. To plead for mercy is to ask for compassion or kindness or forgiveness. It implies that the person asking must depend on the other person for the help sought (is at that person's "mercy").
Keywords:  contend, struggle
To contend; to struggle.
Keywords:  poke, point
Keywords:  earnestly, appeal, him, stop, request
appeal or request earnestly; "I pleaded with him to stop"