Meaning

noun a statement that expresses a personal opinion or belief or adds information

noun a written explanation or criticism or illustration that is added to a book or other textual material

noun a report (often malicious) about the behavior of other people

originFrom Middle English coment, comment, from Old French coment (“commentary”), from Late Latin commentum (“comment, interpretation”), from Classical Latin commentum (“invention, fabrication”).

Etymology from Wiktionary, CC BY-SA 3.0