Crust
/krʌst/noun
The hard outer layer or covering of something, especially bread, pie, or the Earth.
Did you know?English crust comes through Latin crusta, which meant a hard outer layer or rind, and it was used for everything from bread to mineral encrustations—language literally named the shell before the thing inside.
Etymological Timeline
Proto-Indo-European
PIE
*kreus-
“to begin to harden or form a crust; to become rough or dry”
Latin
Latin
crusta
“a hard outer layer, rind, shell, or coating”
Late Latin
Latin
crustāre
“to cover with a crust; to form a hard coating”
Old French
Old French
croste
“crust, hard outer part of bread”
Middle English
English
crust
“the hard outer part of bread or pie”
Modern English
English
crust
“the hard outer layer or covering of something”