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Added 9 October 2026

crust

/kɹʌst/ noun

In Latin: crusta Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about crust at Wordnik → Where our words come from →

The outer layer of the Earth.
A hard outer layer that covers something.
The trait of being rude and impertinent; inclined to take liberties.

verb

Form a crust or form into a crust.
The bread crusted in the oven

Origin

From Middle English cruste, from Anglo-Norman and Old French cruste, from Latin crusta (“hard outer covering”), from Proto-Indo-European *krustós (“hardened”), from *krews- (“to form a crust, begin to freeze”), related to Old Norse hroðr (“scurf”), Old English hruse (“earth”), Old High German hrosa (“crust, ice”), Latvian kruvesis (“frozen mud”), Ancient Greek κρύος (krúos, “frost, icy cold”), κρύσταλλος (krústallos, “crystal, ice”), Avestan 𐬑𐬭𐬎𐬰𐬛𐬭𐬀- (xruzdra-, “hard”), Sanskrit क्रूड् (krūḍ, “thicken, make hard”). Doublet of crusta.

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

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