Historical clue formulations

• Leave a mark on? — 2023-12-27
• Mark up, as a textbook — 2020-06-15
• Gloss — 2017-05-27
• Mark up — 2016-04-21
• Seek to explain, in a way — 2016-04-16
• Comment on, in a way — 2015-09-04
• Add to marginally? — 2009-05-09
• Comment on, as in a margin — 2008-01-14
• Gloss — 2006-05-12
• Mark — 2004-05-14
• Explain, in a way — 1997-06-18