ornithology (English)

Where does "ornithology" come from?

The word ornithology traces its roots back to the Ancient Greek word ornithológos, which combines the terms for bird and study. This concept was later formalized in New Latin as ornithologia by the naturalist Ulisse Aldrovandi. Eventually, it entered English as a specialized term for the scientific study of birds, blending those classic Greek roots with the modern suffix for a field of knowledge.

Full etymology tree

• ornithology (English), 'The branch of zoology that deals with the scientific study of birds.'
  • derived ornithologia (Latin), 'ornithology (scientific study of birds)'
    • derived ὀρνιθολόγος (ornithológos) (Ancient Greek)
      • compound ὄρνις (órnis) (Ancient Greek), 'bird'
        • inherited *órn-īk-s (Proto-Hellenic)
          • inherited *h₃érō (Proto-Indo-European), 'eagle'
      • compound λόγος (lógos) (Ancient Greek), 'that which is said: word, sentence, speech, story, debate, utterance, argument'
        • inherited *lógos (Proto-Hellenic)
          • inherited *leǵ- (Proto-Indo-European), 'to gather, collect, with derivatives meaning to speak by carefully selecting one's words.'

Direct ancestors

• ornithologia (Latin)
• ornitho- (English)
• -logy (English)

Updated July 2026

Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris