Etymology

missionary

mis·sion·ary
M3I1S1S1I1O1N1A1R1Y4

Today it means: One who is sent on a mission. Full definition →

English mission ← Latin missiō ← Old Latin mītō
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The story

  1. Proto-Indo-European*mey-?
  2. Proto-Indo-European*meyth₂-
  3. Proto-Indo-European*méyth₂eti
  4. Proto-Italic*meitō
  5. Old Latinmītō
  6. Latinmittō
  7. Latinmissiō
  8. Englishmission
  9. English todaymissionary

From mission + -ary.

Etymology from Wiktionary, CC BY-SA 4.0.