demi-

prefix

1
: half
demitasse
2
: one that partly belongs to (a specified type or class)
demigod

Word History

Etymology

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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Cite this Entry

“Demi-.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/demi-. Accessed 8 Nov. 2025.

Kids Definition

demi-

prefix
: one that partly belongs to (a specified type or class)
demigod
Etymology

derived from Latin dimidius "half"

Last Updated: - Definition revised
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