Etymology

accompany

ac·com·pa·ny
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Today it means: To go with or attend as a companion or associate; to keep company with; to go along with. Full definition →

Middle English accompanien ← Old French acompagner ← Latin compāniō
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The story

  1. Proto-Indo-European*h₂éd
  2. Proto-Italic*ad
  3. Proto-Italic*ad-
  4. Latinad-
  5. Old Frencha-
  6. Proto-Indo-European*ḱe?
  7. Proto-Indo-European*ḱóm
  8. Proto-Italic*kom
  9. Proto-Italic*kom-
  10. Latincon-
  11. Proto-Indo-European*peh₂-der.?
  12. Latinpānis
  13. Proto-West Germanic*gahlaibō
  14. Latincompāniō
  15. Old Frenchcompaing
  16. Old Frenchacompagner
  17. Middle Englishaccompanien
  18. English todayaccompany

* First attested in early 15th century. From Middle English accompanien, from Old French acompagner (“to associate with”), from compaing (“companion”), nominative singular of compaignon (“companion”). See company.

Etymology from Wiktionary, CC BY-SA 4.0.