Cadit quaestio

Cadit quaestio is a Latin expression that is used both as a legal term and, abbreviated "cq", as a symbol in copy editing. The expression literally translates as "the question (quaestio) falls (cadit)". In legal contexts, cadit quaestio is used to indicate that an issue is no longer in question, often because a dispute (question) between two parties has either been settled, or dropped.

As a mark in copy editing, "cq" implies that the accuracy of a statement has been verified by the copy-editor and, hence, is no longer in question. In this context, cq should be distinguished from sic, used in published pieces to indicate that a quote has been transcribed verbatim, without correcting perceived errors in the original source.