What does superscription mean?
nounA note or inscription written above a line of text, especially in a book or manuscript. A superscription is often used to indicate the author or source of a passage.
Example
"The superscription at the top of the page read 'From the desk of John Smith, 1850'."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.