landslide (n.)youdaoicibaDictYouDict[landslide 词源字典]
1856, American English, from land (n.) + slide (n.). Earlier was landslip, still preferred in Britain. Old English used eorðgebyrst in this sense; literally "earth-burst." In the political sense, landslide "lopsided electoral victory" is attested from 1888.[landslide etymology, landslide origin, 英语词源]