Etymology

antro-

Today it means: Related to an antrum. Full definition →

English antrum ← Latin antrum ← Ancient Greek ᾰ̓́ντρον (ắntron)
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The story

  1. Ancient Greekᾰ̓́ντρον (ắntron)
  2. Latinantrum
  3. Englishantrum
  4. English todayantro-

From the noun antrum and the interfix -o-. By surface analysis, antr- + -o-.

Etymology from Wiktionary, CC BY-SA 4.0.