Annotate and Commenting

verb

• Add explanatory notes to or supply with critical comments.
  • usage: "The scholar annotated the early edition of a famous novel"
  • synonyms: footnote
• Provide interlinear explanations for words or phrases.
  • usage: "He annotated on what his teacher had written"
  • synonyms: gloss, comment

• (v.i.) To make notes or comments; -- with on or upon.
• (n.) To explain or criticize by notes; as, to annotate the works of Bacon.