to announce or praise (a product, service, etc.) in some public medium of communication in order to induce people to buy or use it: to advertise a new brand of toothpaste.
2.
to give information to the public about; announce publicly in a newspaper, on radio or television, etc.: to advertise a reward.
3.
to call attention to, in a boastful or ostentatious manner: Stop advertising yourself!
4.
Obsolete. to give notice, advice, or information to; inform: I advertised him of my intention.
Origin: 1400–50; late Middle English advertisen < Middle French avertiss-, long stem of avertir < Vulgar Latin *advertire,Latin advertere to advert1; the expected Middle English *advertishen probably conformed to advertisement or the suffix -ize
early 15c., "to take notice of," from M.Fr. advertiss-, prp. stem of a(d)vertir "to warn," from L. advertere "turn toward," from ad- "toward" + vertere "to turn" see versus). Sense shifted to "to give notice to others, warn" (late 15c.) by influence of