What is Accord?

Legal Definition
1) A harmonious agreement, especially between countries.

2) An offer to substitute a different obligation for one that was previously owed, plus the acceptance of that offer. Either of the parties involved can propose an accord. If the newly substituted obligation is actually performed, the performance is called a satisfaction. See Accord and satisfaction.

3) A signal indicating that the cited source conforms in some way to a source already identified in the author's previous sentence. Thus, if a participant in negotiations reported a very heated debate, an accord citation could point to a matching report from another participant.
Legal Definition
In contracts. A satisfaction agreed upon between the party injuring and the party injured, which when performed is a bar to all actions upon this account. 3 Bl. Com. 15; Bac. Abr, Accord.

2. In order to make a good accord it is essential: 1. That the accord be legal. An agreement to drop a criminal prosecution as a satisfaction for an assault and imprisonment, is void. 5 East, 294. See 2 Wils. 341 Cro. Eliz. 541.

3. – 2. It must be advantageous to the contracting party; hence restoring to the plaintiff his chattels, or his land, of which the defendant has wrongfully dispossessed him, will not be any consideration to support a promise by the plaintiff not to sue him for those injuries. Bac. Abr. Accord, &c. A; Perk. s. 749; Dyer, 75; 5 East, R. 230; 1 Str. R. 426; 2 T. R. 24; 11 East, R. 390; 3 Hawks, R. 580; 2 Litt. R. 49; 1 Stew. R. 476; 5 Day, R. 360; 1 Root, R. 426; 3 Wend. R. 66; 1 Wend, R. 164; 14 Wend. R. 116; 3 J. J. Marsh. R. 497.

4. – 3. It must be certain; hence an agreement that the defendant shall relinquish the possession of a house in satisfaction, &c., is not valid, unless it is also agreed at what time it shall be relinquished. Yelv. 125. See 4 Mod. 88; 2 Johns. 342; 3 Lev. 189.

5. – 4. The defendant must be privy to the contract. If therefore the consideration for the promise not to sue proceeds from another, the defendant is a stranger to the agreement, and the circumstance that the promise has been made to him will be of no avail. Str. 592; 6, John. R. 37; 3 Monr. R. 302 but in such case equity will grant relief by injunction. 3 Monr. R. 302; 5 East, R. 294; 1 Smith's R. 615; Cro. Eliz. 641; 9 Co. 79, b; 3 Taunt. R. 117; 5 Co. 117, b.

6. – 5. The accord must be executed. 5 Johns. R. 386; 3 Johns. Cas. 243; 16 Johns. R. 86; 2 Wash. C. C. R. 180; 6 Wend. R. 390; 5 N. H. Rep. 136; Com. Dig. Accord, B 4.

7. Accord with satisfaction when completed has two effects; it is a payment of the debt; and it is a species of sale of the thing given by the debtor to the creditor, in satisfaction; but it differs from it in this, that it is not valid until the delivery of the article, and there is no warranty of the thing thus sold, except perhaps the title; for in regard to this, it cannot be doubted, that if the debtor gave on an accord and satisfaction the goods of another, there would be no satisfaction. See Dation, en paiement.

See in general Com. Dig. h. t.; Bac. Ab. h. t.; Com. Dig. Pleader, 2 V 8; 5 East, R. 230; 4 Mod. 88 ; 1 Taunt. R. 428; 7 East, R. 150; 1 J. B. Moore, 358, 460; 2 Wils. R. 86; 6 Co. 43, b; 3 Chit. Com. Law, 687 to 698; Harr. Dig. h. t.; 1 W. Bl. 388; 2 T. R. 24; 2 Taunt. 141; 3 Taunt. 117; 5 B.& A. 886; 2 Chit. R. 303 324; 11 East, 890; 7 Price, 604; 2 Greenl. Ev. 28; 1 Bouv. Inst. n. 805; 3 Bouv. Inst. n. 2478-79-80-81. Vide Discharge of Obligations.
-- Bouviers Law Dictionary
Legal Definition
v. In practice. To agree or concur, as one judge with another. "I accord." Eyre, C. J., 12 Mod. 7. "The rest accorded." 7 Mod. 361.
-- Black's Law Dictionary
Legal Definition
n. A satisfaction agreed upon between the party injuring and the party injured which, when performed, is a bsr to all actions upon this account. Kromer v. Heim, 75 N. Y. 576, 31 Am. Rep. 491. An agreement to accept, in extinction of an obligation, something different from or less than that to which the person agreeing to accept is entitled. Civ. Code CaL § 1521; Civ. Code Dak. § 859.
-- Black's Law Dictionary