postil
/ˈpɒstɪl/noun
1- archaic a marginal note or comment, especially on a biblical text〈古〉（尤指《圣经》文本中的）旁注, 评注。
1.1
- a commentary, homily, or book of homilies评论; 布道; 布道书。
词源
late Middle English: from Old French postille, from medieval Latin postilla, perhaps from Latin post illa （verba） 'after those words', written as a direction to a scribe.