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Simple Definition of demi-

  • : half or partly

Source: Merriam-Webster's Learner's Dictionary

Full Definition of demi-

  1. 1 :  half <demisemiquaver>

  2. 2 :  one that partly belongs to (a specified type or class) <demigod>

Origin and Etymology of demi-

Middle English, from demi, from Anglo-French, from Vulgar Latin *dimedius, modification of Latin dimidius, from dis- + medius mid — more at mid

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