Origin: 1520–30; < Middle French apostille, noun derivative of apostiller to add marginal notes, derivative, with a-a-5, of Medieval Latin postilla marginal note, perhaps from the phrase post illa (verba) after these (words), with illa construed as the Latin diminutive suffix
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a scrap or morsel of food left at a meal.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
[C16: from French apostille, from Old French apostiller to make marginal notes, from Medieval Latin postilla, probably from Latin post illa (verba) after those (words)]