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Added 10 October 2026

demi

noun

Latin root: dimidius Wiktionary

noun Definition from Wiktionary (CC BY-SA). More about demi at Wordnik → Where our words come from →

Alternative spelling of demy.
A fifty pence piece.
A bottle of wine containing 0.375 liters of fluid, half the volume of a standard bottle; a split.

noun

A member of the demimonde; a woman maintained by a wealthy man.

adjective

Demisexual.

Origin

From Middle English demi, from Anglo-Norman demi, from Latin dimidius. Literally, “half”.

From Wiktionary, via Kaikki.org (CC BY-SA)

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