apostle (the noun): from the Latin apostolus; which derives from the Greek ἀπόστολος, a messenger, one sent forth; which derives from the Greek ἀποστέλλειν, to send away.
"apostle, n." OED Online. September 2012. Oxford University Press. http://ezproxy.spu.edu/login?url=http://www.oed.com/view/Entry/9427 (accessed September 21, 2012).
