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Definition & Meaning: End(o)- Word Root

The root word End(o)- originates from the Greek word endon, meaning internal. This root is integral in forming words that describe something situated within or occurring inside. For instance, an endoscope is an instrument used to examine the interior of a body, an endoskeleton is an internal skeleton typical of vertebrates, the endocardium is the membrane lining the heart’s chambers, and the endometrium is the mucous membrane lining the womb. Another example is endarterectomy, which is the surgical removal of the inner lining of an artery.

Diagram featuring words derived from the End(o)- root word: Endogamy, Endoparasite, Endotherm

Words Based on the End(o)- Word Root

Commonly Used Words Based on the End(o)- Word Root

  • Endogamy: The custom of marrying only within the limits of a clan or tribe.
  • Endoparasite: Any parasite that lives within the internal organs of an animal.
  • Endotherm: A creature that can maintain a constant internal temperature.

Archaic Words Based on the End(o)- Word Root

  • Endosmosis: Osmosis in which fluid is absorbed into a cell from a surrounding fluid.
  • Endophage: Feeding from within the food source.
  • Endophasia: Internalized, inaudible speech.

Technical Words/Jargon Based on the End(o)- Word Root

  • Endocrinologist: A physician specializing in the endocrine system’s conditions.
  • Endocrinology: The branch of biology dealing with the endocrine glands and their secretions.
  • Endocervicitis: Inflammation of the mucous membrane of the cervix uteri.
  • Endotitis: Inflammation of the inner ear.

Related Word Roots

  • Intra- (Latin): Meaning ‘within’ or ‘inside’.
    • Intravenous: Administered within or into a vein.
    • Intramural: Situated or done within the walls of a building.
  • En- (Greek): Meaning ‘in’ or ‘within’.
    • Enclose: To close in on all sides.
    • Endeavor: To try hard to achieve something.
  • Endo- (Greek): Meaning ‘inside’.
    • Endoscopy: A procedure using an endoscope to examine the interior of a bodily organ or space.
    • Endobiotic: Living within the tissues of a host.

We hope this article on the End(o)- root word has been helpful in expanding your vocabulary. Keep learning and enhancing your understanding of the English language!

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