Etymology

protococcus

pro·to·coc·cus
P3R1O1T1O1C3O1C3C3U1S1

Today it means: Any bacterium of the genus Protococcus. Full definition →

English proto- ← Ancient Greek πρωτο- (prōto-) ← Proto-Indo-European *pró
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The story

  1. Proto-Indo-European*per-der.?
  2. Proto-Indo-European*pér
  3. Proto-Indo-European*pró
  4. Ancient Greekπρό (pró)
  5. Ancient Greekπρῶτος (prôtos)
  6. Ancient Greekπρωτο- (prōto-)
  7. Englishproto-
  8. English todayprotococcus

From proto- + -coccus.

Etymology from Wiktionary, CC BY-SA 4.0.