appending
ap-pend-ing
verb
The action of adding something, typically text or data, to the end.
"She was appending new entries to the spreadsheet."
verb
The act of attaching or joining one thing to another.
"He was appending his signature to the official document."
Thesaurus
Synonyms: supply, append, add, affix, add on, supplement, tack on, tack, tag on, hang on