be corrected, if wrong, by appeal.” Simmons v. McCullin, 163 N. C., 409, 79. S. E., 625.
Tbe authority to bear and determine carries with it the power to adjudge erroneously as well as correctly. Hart v. Smith, 159 Ind., 661, 95 A. S. R., 280, 58 L. R. A., 949. This is a postulate of jurisdiction. King v. R. R., 184 N. C., 442, 115 S. E., 172; S. c., sub nomine, R. R. v. Story, 193 N. C., 362, 137 S. E., 166. “A judgment not appealed from, however erroneous, is res judicata.” North Carolina R. R. v. Story, 268 U. S., 288. If this were not so, why have a court of review or one for the correction of errors ?
Given jurisdiction and the power to decide, it is not perceived upon what principle a mistake in constitutional law should be visited with more, or less, serious consequences than a mistake in common or statutory law. Treinies v. Sunshine Mining Co., filed 6 November, 1939, .... U. S., ....., 84 Law Ed., 1; Simmons v. McCullin, supra; Koepke v. Hill, 157 Ind., 172, 60 N. E., 1039; 87 A. S. R., 161; 15 R. C. L., 861.
Moreover, it is the general rule, subject to certain exceptions, that a defendant may waive a constitutional as well as a statutory provision made for his benefit. Sedgwick Stat. and Const. Law, p. 111. And this may be done by express consent, by failure to assert it in apt time, or by conduct inconsistent with a purpose to insist upon it. S. v. Hartsfield, 188 N. C., 357, 124 S. E., 629.
The right to claim a homestead may be lost by failure to assert it in apt time, by waiver, or by estoppel. Pence v. Price, 211 N. C., 707, 192 S. E., 99; Duplin County v. Harrell, 195 N. C., 445, 142 S. E., 481; Simmons v. McCullin, supra; Caudle v. Morris, 160 N. C., 168, 76 S. E., 17; Wilson v. Taylor, 98 N. C., 275, 3 S. E., 492; Hinson v. Adrian, 92 N. C., 121. The holding in Lambert v. Kinnery, 74 N. C., 348, is not at variance with this position. Nor is the decision in Dellinger v. Tweed, 66 N. C., 206, contra.
Having omitted to assert his right to a homestead in the particular land, when the matter was in issue, we think the plaintiff is now estopped to relitigate the question. Ladd v. Byrd, 113 N. C., 466, 18 S. E., 666. He may have preferred a homestead in other lands, or at least it did not then appear that the claim of homestead would be asserted against the enforcement of the lien on the specific property for materials furnished and used in the construction of the building erected thereon. Ferguson v. Wright, 113 N. C., 537, 18 S. E., 691. The matter is concluded by the former judgment.
A judgment regularly entered by a court having jurisdiction and authority to act in the premises, from which no appeal is taken, operates as an estoppel upon the parties thereto and those claiming under them, though the judgment may be erroneous in law. Northcott v. Northcott,