from
Bouvier's Law Dictionary, Revised 6th Ed (1856)
IN NULLO EST ERRATUM, pleading. A plea to errors assigned on proceedings in
error, by which the defendant in error affirms there is no error in the
record. As to the effect of, such plea, see 1 Vent. 252; 1 Str. 684; 9 Mass.
R. 532; 1 Burr. 410; T. Ray. 231. It is a general rule that the plea in
nullo est erratum confesses the fact assigned for error; Yelv. 57; Dane's
Ab. Index, h.t.; but not a matter assigned contrary to the record. 7 Wend.
55; Bac. Ab. Error; G.