nude matter.A mere allegation.

“[N]ude matter is not of so high nature, as either a mater of Record or a speciality, otherwise there called mater in deede; which maketh mee to thinke, that nude mater is a naked allegation of a thing done, to be proved only by witnesses, and not either by Record, or other speciality in writing vnder seale.” John Cowell, The Interpreter (1607).

[Blacks Law 8th]