specious (adj.)youdaoicibaDictYouDict[specious 词源字典]
late 14c., "pleasing to the sight, fair," from Latin speciosus "good-looking, beautiful, fair," also "showy, pretended, plausible, specious," from species "appearance, form, figure, beauty" (see species). Meaning "seemingly desirable, reasonable or probable, but not really so; superficially fair, just, or correct" in English is first recorded 1610s. Related: Speciously; speciosity; speciousness.[specious etymology, specious origin, 英语词源]