postil in British English
(ˈpɒstɪl)noun
1. a commentary or marginal note, as in a Bible
2. a homily or collection of homiliesverbWord forms: -tils, -tiling, -tiled or -tils, -tilling, -tilled
3. obsoleteto annotate (a biblical passage)
Collins English Dictionary. Copyright © HarperCollins Publishers
Word originC15 (postille): from Old French postille from Medieval Latin postilla, perhaps from post illa (verba textus), after these words in the text, often the opening phrase of such an annotation