delivered the opinion of the Court:
It is argued on behalf of the complainant, that the validity of the judgments cannot be questioned in a collateral proceeding like the present; that it may well have been drat it was shown on the trial that, by reason of insolvency of the principal 'defendant, or for some other reason, the plaintiff had been damnified to the extent of the whole principal sum due, and, at all events, as to the interest that had accrued upon it; that, therefore, upon an undertaking to pay all intervening damages and costs, the judgment against the surety was justified; that we might properly infer that the undertakings in all the cases were the same; and that, even if these undertakings were in excess of the requirements of the *227statute, they were good at common, law as voluntary undertakings. And it was further claimed that the justice sitting in equity had no right to correct irregularities in the entry of judgments by himself or by any other justice at common law. On the other hand, on behalf of the defendant Taylor, it is insisted that the judgments are void except as to the costs.
Undoubtedly the law is well settled, that the validity of judgments cannot be questioned in any collateral proceeding for mere error or irregularity in their rendition. But it is equally well settled that the invalidity of a judgment for the want of jurisdiction in the court to render it, may be shown in any proceeding whatever in which it is sought to enforce it. For a judgment invalid for the want of jurisdiction, is absolutely void; and the person against whom it is rendered is under no obligation to take any direct steps for its cancellation. Williamson v. Berry, 8 How., 495 ; Webster v. Reid, 11 How., 437 ; Thompson v. Whitman, 18 Wall., 457 ; Windsor v. McVeigh, 93 U. S., 274; United States v. Walker, 109 U. S., 258.
Lack of jurisdiction, either of the person or of the subject matter, will wholly invalidate a judgment. And even when there is jurisdiction both of the person and of the subject matter, if a court does not proceed according to established modes, or transcends the powers granted to it by law, that fact may be shown in a collateral proceeding; and if shown, the judgment will be regarded as void. Thompson v. Whitman, 18 Wall., 457; Windsor v. McVeigh, 93 U. S., 274; United States v. Walker, 109 U. S., 258 ; Pennoyer v. Neff, 95 U. S., 714; Kilbourn v. Thompson, 103 U. S., 198 ; In re Sawyer, 124 U. S., 200.
The claim of the defendant in the present suit is, that the court which rendered the four judgments at law that are sought to be enforced here, transcended its authority in rendering them against him, except for the matter of costs.
As already stated, this defendant was not an original party to the transaction. He was introduced merely as a surety *228before the justice of the peace who had rendered the original judgments, for the purpose of the execution of the undertaking which was required as a condition for the allowance of the appeal. From this undertaking, and from the laiw which prescribes it, the extent and character of his liability are to be determined.
This undertaking was provided for by the act of Congress of February 22, 1867, 14 Stat., 403, entitled “An act to amend the law of the District of Columbia in relation to judicial proceedings therein,” of which the first section seeks to regulate the matter of appeals from justices of the peace. This first section was embodied in the Revised Statutes of the United States for the District of Columbia, and is as follows:
“Sec. 1028. No appeal shall be allowed from a judgment of a justice of the peace, unless the appellant, with sufficient surety, approved by the justice, enters into an undertaking to satisfy and pay all intervening damages and costs arising on the appeal.”
The term undertaking, which is used in this statute as the equivalent of an appeal bond, or as a substitute therefor, seems to have made its first appearance in our local legislation in an act of Congress of the previous year (June x, 1866, 14 Stat., 54), regulating writs of attachment in the District of Columbia. About the same time, or perhaps earlier, it appeared in the rules of the Supreme Court of the District of Columbia, in which, pursuant to the power granted to that court to make rules, it was provided, as one of the requirements for an effective appeal from the special to the general term, that tihe appellant should file in the cause an undertalcing in the following terms:
“ The defendant having appealed to the general term from the judgment (or decree) pronounced against him in the special term on the — day of-, and A. B., his surety, for theniselves, and each of them, their and each of their heirs, executors, and administrators, appearing and submitting to the jurisdiction of the said general term, hereby undertake to *229abide by, perform, and pay its judgment, which they agree may be pronounced against all of them.”
Whence the term came, and why it was introduced, it is unnecessaty here to inquire. Its scope and effect, however, are important in our present consideration.
Unlike the ordinary appeal bond, which is an obligation under seal, with a fixed penalty, and a definite condition, limited to become effective or otherwise by the determination of the appeal, the undertaking is without seal, or fixed penalty, and without condition; and is simply a promise or an assumption of liability, to perform a judgment, or to pay damages and costs. Webster defines it in this connection to mean “a promise or pledge; a guarantee.” And Bouvier gives it as “an engagement by one of the parties to a contract to the other, and not the mutual engagement of the parties; a promise.” But while it differs in form from the bond, its essential purpose and effect are the same as those of the bond — to give the guaranty of an additional person as security for the costs that might be incurred and the damages that might result to an appellee by the prosecution of an appeal that prevents him from realizing his claim as speedily and as effectively as he might otherwise have done.
The form of undertaking in use in the Supreme Court of the District of Columbia for appeals from the special to the general term, besides the simple promise or guaranty to perform the judgment, contains a peculiar provision for the appearance and submission of all the parties, both principal and sureties to the jurisdiction of the court, and an agreement that the judgment to be rendered in the cause might be rendered against both principal and surety; and it is understood that the practice of that court has been so to render judgment on appeal. There is reason to suppose that it was this peculiar feature that induced the substitution of the undertaking for the appeal bond, the idea being that circuity of action was prevented and the administration of justice facilitated by making the surety a party to the pending suit, and by the rendition of judgment against him, as well as against *230his principal, dispensing with the necessity of a collateral suit upon the appeal bond or undertaking.
Whether such submission and agreement are effectual as a waiver of “ the day in court,” and tire “ due process of law,” to which every individual is entitled by common right, public policy, and constitutional guaranty, we express no opinion. But certain it is that an imdertaking of itself does not imply that it must contain such a provision. There is no magical effect in the word to subject a person who becomes a party to the instrument to the jurisdiction of the appellate tribunal whose action it is given to invoke. And if there is no such express stipulation in the undertaking, we cannot assume that tire person executing it intended to waive his rights, and to consent to a judgment upon it against him in the action in which it was given. Such a waiver must be clear and unequivocal to entitle it to be eirforced.
Tested by these principles, the four judgments rendered in tire circuit court branch of the Supreme Court of the District of Columbia against the defendant, Anson S. Taylor, are fatally defective. • They are not good even for the costs. In three of the cases, the undertakings, so far as we are entitled to infer from the record, contain no provision whatever for submission to the appellate court, and no agreement by Taylor to authorize the rendition of judgment against him on the appeal. There is no inference to be indulged that the undertakings in the cases were identical in terms with that given in the fourth; for they were given at different times, and there is no proof even of usage in the matter. The only proper inference is, that the provision of the statute was followed; and that requires simply an undertaking to pay intervening damages and costs; and it neither authorizes nor requires any stipulation for submission to the jurisdiction or agreement for the rendition of judgment. These three judgments, therefore, are utterly void as against Taylor for the reason that the court had not in any manner acquired jurisdiction of the person of Taylor, and was without authority to render any judgment whatever against him.
*231In the case in which the undertaking was given to “ abide by, perform, and pay the judgment of the court,” the contention of the appellant can no more be sustained than in the other three cases. So far as the record shows, there was no more waiver of process or submission to the jurisdiction in ■that case than in the others. The mere undertaking of a party to perform the judgment of a court does not give that court jurisdiction to render judgment against him, and does not imply any submission to the jurisdiction of tíre court so far as to authorize a judgment.
The court below held that this undertaking was void as being in excess of the requirements of the statute; and that being void, there could be no valid judgment upon it for the excess. Upon this we need not express any opinion. It is sufficient for us to say that it contains no consent for the exercise of the jurisdiction of the court; and without such consent, the exercise of jurisdiction was a nullity.
Certain papers filed in this court after this cause was transferred to us purport to contain transcripts of the record entries in the four cases, and a copy of the undertaking of which we have last spoken. Whether it is competent for us to accept these papers at this time, is of no consequence in this suit; for the undertaking now produced, although it contains the clause stipulating for submission to the jurisdiction, does not contain the consent for rendition of judgment against the surety; and we cannot assume from this that the defendant waived his rights to his day in court. On the contraiy, so far as it is any indication at all, the omission of the consent to the rendition of judgment is a- clear reservation of right by the party.
We are, therefore, of opinion, that all these judgments were utterly void, and not merely erroneous or irregular; and that, therefore, they cannot be enforced, even for the costs. But inasmuch as the defendant has offered to pay the costs, and has not appealed from the decision requiring him so to do, and inasmuch as it appears that he is equitably liable for these costs in some proceeding, we do not think that *232the decree, so far as it requires him to pay them, and to pay one-half of the costs of this equity suit, should be disturbed.
It follows that the decree of the Supreme Court of the District of Columbia in special term must be affirmed, with costs, and it is so ordered.
Affirmed.