Meaning

noun someone who attempts to convert others to a particular doctrine or program

noun someone sent on a mission--especially a religious or charitable mission to a foreign country

adjective relating to or connected to a religious mission

originEtymology tree English mission Proto-Indo-European *-yósder. Proto-Italic *-āzijos Latin -āriusder. Middle English -arie English -ary English missionary From mission + -ary.

Etymology from Wiktionary, CC BY-SA 3.0