long-term (adj.)youdaoicibaDictYouDict[long-term 词源字典]
also longterm, long term, 1876, originally in insurance, from long (adj.) + term (n.).[long-term etymology, long-term origin, 英语词源]
short-term (adj.)youdaoicibaDictYouDict
1901, from short (adj.) + term (n.).
pied-à-terreyoudaoicibaDictYouDict
"A small flat, house, or room kept for occasional use", Early 19th century: French, literally 'foot to earth'.