Etymology
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refrigerate (v.)

1530s, "to cool, make cool," a back-formation from refrigeration, or else from Latin refrigeratus, past participle of refrigerare "make cool or cold." Related: Refrigerated; refrigerating. Earlier words in the sense of "to make cold, to cool" were infrigiden, infrigidate (both early 15c.). Middle English had refroiden "to cool" (anger), mid-15c., from Old French refroider.

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refrigerator (n.)

1610s, "something that cools, that which keeps cool," agent noun from refrigerate. As "cabinet or chamber for keeping food or other contents cooled to a little above freezing," 1824, originally in the brewery trade, in place of earlier refrigeratory (c. 1600). Electric-powered household refrigerating and ice machines were widely available from c. 1918.

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