Sunday's term was interlineation, which is defined as:
n. the act of writing between the lines of a document, usually to add something that was omitted or thought of later. The issue (debated question) is whether both parties to a document (a contract, for example) had agreed upon the addition or whether the new words were part of the document (like a will) when it was signed. Good practice is either to have all parties initial the change at the point of the writing or have the document re-typed and then signed.
No one guessed this time around.
Today's term is:
As always, no dictionaries, please.