Arrhythmia, from Greek ἀρρυθμία, refers to a lack of regularity (ῥυθμός) or a skip in a beat or pulse. In textual criticism, the term describes a skip in the reading activity of the eyes which in turn can produce haplography, if the eyes skip ahead in the exemplar, or dittography, if the eyes skip back in the exemplar text.
Cf. types of errors.
In other languages
Graeco-Latin term used throughout.