* Note: This word comes from the Old French "note" which ultimately comes from the Latin "nota," meaning "mark" or "sign."
* Book: This word comes from the Old English "bōc," which comes from the Proto-Germanic "*bōkō," and ultimately has roots in the Proto-Indo-European "*bʰeǵʰ-," meaning "to speak" or "to say."
Therefore, while the "note" part of the word has a Latin origin, "book" does not. The word "notebook" is a relatively modern English invention, combining the two words to describe a small book used for taking notes.