notandum

Notandum is a Latin term historically used to indicate that something warrants note. It derives from the neuter singular form of the gerundive notandus, from notare "to note," and translates roughly as "to be noted" or "worthy of note." In textual practice, notandum functions as a label for items requiring attention, often appearing in marginalia or editor's notes.

In medieval and early modern manuscript culture and legal drafting, notandum was used to flag corrections, observations, or points to be considered in subsequent discussion. Phrases such as "notandum est" introduce a point the author intends the reader to take into account.

In contemporary Latin scholarship, notandum is primarily encountered as a historical linguistic marker rather than a living term with a fixed technical definition. It may appear in scholarly apparatus, editions, or commentaries that preserve Latin phrasing. Outside strictly linguistic contexts, "Notandum" can be adopted as a modern proper noun or brand name, but such uses are independent of the classical sense.

Related terms include nota bene and notatio, which share the general idea of marking or noting information for attention. Notandum remains primarily of interest to historians of language and manuscripts, rather than as a standalone concept in modern terminology.