1. annotate, footnote -- (add explanatory notes to or supply with critical comments; "The scholar annotated the early edition of a famous novel")
2. gloss, comment, annotate -- (provide interlinear explanations for words or phrases; "He annotated on what his teacher had written")
1.
Louis Philippe annotated Beccaria with his own hand. - from Les Miserables by Victor Hugo
2.
He drew up prospectuses, translated newspapers, annotated editions, compiled biographies, etc. - from Les Miserables by Victor Hugo