What is the process of amending pleadings by writing between existing words or lines called?

The process of amending pleadings by writing between existing words or lines is known as interlineation. This term specifically refers to the act of adding new material or making changes directly within the text of a document, thereby altering the original content without removing it. Interlineation can be a useful method in legal contexts where it is necessary to make adjustments to pleadings or other documents while retaining the original text for reference. This approach is often preferred in legal proceedings, as it maintains the integrity of the existing document while allowing for necessary updates or corrections.

Other options like redaction, correction, and modification refer to different processes. Redaction typically involves removing sensitive information or parts of a document, while correction generally pertains to fixing errors. Modification is a broader term that can refer to changing something in various ways, but it does not specifically capture the essence of adding content in the manner described by interlineation.