Special errors
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
Special pleas in error are such as, instead of joining in error, allege some extraneous matter as a ground,of defeating the writ of error, e. g., a release of errors, expiration of the time within which error might be brought, or the like. To these, the plaintiff in error may either reply or demur.