Etymology

macroalga

M3A1C3R1O1A1L1G2A1

Today it means: Large algae, often living attached in dense beds, such as kelp. Full definition →

English alga ← Latin alga ← French macro-
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The story

  1. Proto-Indo-European*meh₂ḱ-
  2. Proto-Indo-European*mh₂ḱrós
  3. Proto-Hellenic*makrós
  4. Ancient Greekμᾰκρός (măkrós)
  5. Frenchmacro-
  6. Englishmacro-
  7. Latinalga
  8. Englishalga
  9. English todaymacroalga

From macro- + alga.

Etymology from Wiktionary, CC BY-SA 4.0.