advertiser

Concise Oxford English Dictionary © 2008 Oxford University Press:
advertise/ˈadvətʌɪz/

▶verb

• 1 publicize (a product, service, or event) in order to promote sales or attendance.

• 2 make (something) known.

• 3 archaic notify.

– derivatives
advertiser noun,
advertising noun.

– origin ME: from OFr. advertiss-, lengthened stem of advertir, from L. advertere (see advert2).