Meaning

noun a sign posted in a public place as an advertisement

noun someone who pastes up bills or placards on walls or billboards

noun a horse kept at an inn or post house for use by mail carriers or for rent to travelers

originEtymology tree English post Proto-Indo-European *-yósder. Proto-Italic *-āzijos Latin -āriusnom. Latin -āriusbor. Proto-Germanic *-ārijaz Proto-West Germanic *-ārī Old English -ere Middle English -ere English -er English poster From post + -er.

Etymology from Wiktionary, CC BY-SA 3.0