Etymology

Fergus

F4E1R1G2U1S1

Today it means: A male given name from Scottish Gaelic. Full definition →

Scottish Gaelic Fearghas ← Old Irish Fergus ← Irish Fearghas
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The story

  1. Proto-Indo-European*weyh₁-?
  2. Proto-Indo-European*wiHrós
  3. Proto-Celtic*wiros
  4. Proto-Indo-European*ǵews-
  5. Proto-Indo-European*ǵéwstus
  6. Proto-Celtic*gustus
  7. Proto-Celtic*Wirogustus
  8. Old IrishFergus
  9. IrishFearghas
  10. Old IrishFergus
  11. Scottish GaelicFearghas
  12. English todayFergus

From Irish or Scottish Gaelic Fearghas. The first element may be related to modern fìor (“true”) or fear (“man”) (cf. Fearchar). The second element has been understood to mean 'choice' (cf. Angus). Thus the name means either "most chosen one" or "chosen man".

Etymology from Wiktionary, CC BY-SA 4.0.