Third-person singular present tense of 'annotate': adds explanatory notes, comments, or markings to a text, image, or other material.
From Latin 'annotare' (to write upon), composed of 'ad-' (to) and 'notare' (to mark or note, from 'nota' meaning mark). The '-ates' suffix shows third-person singular present tense in English verbs.
When a teacher annotates your essay with comments, they're literally doing what Roman scribes did 2,000 years ago—writing marks 'upon' text, a practice so fundamental that the word's Latin roots are unchanged after two millennia.
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