caboose (n.)youdaoicibaDictYouDict[caboose 词源字典]
1747, "ship's cookhouse," from Middle Dutch kambuis "ship's galley," from Low German kabhuse "wooden cabin on ship's deck;" probably a compound whose elements correspond to English cabin and house (n.). Railroading sense is by 1859.[caboose etymology, caboose origin, 英语词源]