Com·men·ta·ry n.; pl. Commentaries
1. A series of comments or annotations; esp., a book of explanations or expositions on the whole or a part of the Scriptures or of some other work.
This letter . . . was published by him with a severe commentary. --Hallam.
2. A brief account of transactions or events written hastily, as if for a memorandum; -- usually in the plural; as, Caesar's Commentaries on the Gallic War.