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core (n.)
late 14c., probably from Old French
coeur
"core of fruit, heart of lettuce," literally "heart," from Latin
cor
"heart," from PIE root
*kerd-
"heart" (see
heart
). Nuclear reactor sense is from 1949.
core (v.)
mid-15c., from
core
(n.). Related:
Cored
;
coring
.
