concession (n.)youdaoicibaDictYouDict[concession 词源字典]
mid-15c., from Old French concession (14c.) or directly from Latin concessionem (nominative concessio) "an allowing, conceding," noun of action from past participle stem of concedere (see concede). Meaning "right or privilege granted by government" is from 1650s. "Refreshment stand" sense is from 1910.[concession etymology, concession origin, 英语词源]