Meaning

noun someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)

noun electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance

noun the presiding officer of a deliberative assembly

originFrom Middle English speker, spekere, an alteration (with change of suffix) of Old English speca, spreca (“speaker”), from Proto-Germanic *sprekô (“speaker”), equivalent to speak + -er. Compare Saterland Frisian Spreeker (“speaker”), West Frisian sprekker (“speaker”), Dutch spreker (“speaker”), German Low German Spreker (“speaker”), German Sprecher (“speaker”).

Etymology from Wiktionary, CC BY-SA 3.0