Koh-i-Noor

proper noun

One of the largest cut diamonds in the world, originating from India and weighing 105.6 carats (21.12 g). It changed hands between various factions in south and west Asia until being ceded to Queen Victoria after the British annexation of the Punjab in 1849.

OriginClassical Persian کوهِ نُور →
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Meanings

proper nounthe Koh-i-Noor

alternative Kohinor · alternative Kohinoor · alternative obsolete Cohi Noor

  1. One of the largest cut diamonds in the world, originating from India and weighing 105.6 carats (21.12 g). It changed hands between various factions in south and west Asia until being ceded to Queen Victoria after the British annexation of the Punjab in 1849.
nounKoh-i-Noor (plural Koh-i-Noors)

plural Koh-i-Noors · alternative Kohinor · alternative Kohinoor · alternative obsolete Cohi Noor

  1. broadlyAny very large and valuable diamond.

Origin

  1. Classical Persianکوهِ نُور
  2. EnglishKoh-i-Noor

Borrowed from Classical Persian کوهِ نُور (kōh-i nūr, literally “mountain of light”).

More words from Classical Persian

Full word history & related roots →
Cite this entry
APA

Koh-i-Noor. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Koh-i-Noor

MLA

“Koh-i-Noor.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Koh-i-Noor. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “Koh-i-Noor,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Koh-i-Noor.

Source: Koh-i-Noor on Wiktionary, CC BY-SA 4.0.