chill (v.)youdaoicibaDictYouDict[chill 词源字典]
late 14c., intransitive, "to feel cold, grow cold;" c. 1400, transitive, "to make cold," from chill (n.). Related: Chilled; chilling; chillingly. Figurative use from late 14c. Meaning "hang out" first recorded 1985; from earlier chill out "relax" (1979).
Sheila E. sizzles in the new flick, Krush Groove, but some New York critics couldn't groove with it because many of the terms are unfamiliar to them. Examples: breakin' out (slang for leaving), chill (for cool down) and death (for something that's really good). ["Jet," Nov. 11, 1985]
[chill etymology, chill origin, 英语词源]
refrigerant (adj.)youdaoicibaDictYouDict
1590s, originally in medicine; from Latin refrigerans, present participle of refrigerare "make cool or cold, to cool down" (see refrigeration). As a noun from 1670s.
refrigeration (n.)youdaoicibaDictYouDict
late 15c., "act of cooling or freezing," from Latin refrigerationem (nominative refrigeratio) "a cooling, mitigation of heat," especially in sickness, noun of action from past participle stem of refrigerare "to cool down," from re- "again" (see re-) + frigerare "make cool," from frigus (genitive frigoris) "cold" (see frigid). Specifically "freezing provisions as a means of preserving them" from 1881.