missing passage; lacuna
Refers to a portion of text that is missing from a document, manuscript, or printed work, often due to damage, omission, or censorship.
This manuscript has several missing passages.
A lacuna occurred during the editing process.
Compound of 脱 (だつ, 'to omit, leave out') and 文 (ぶん, 'text, sentence'). The exact historical derivation is uncertain, but the word is conventionally used in textual criticism and bibliography.