a word to the wise

As a noun, advert, is, of course, an abbreviated word for “advertisement.” But when used as a verb – as in, “to advert to” something – it means turning attention to. (And, yes, there must be some connection here.) Example from The Mystery of Marie Rogêt by Edgar Allan Poe: “I have before suggested that a genuine blackguard is never without a pocket-handkerchief. But it is not to this fact that I now especially advert.”