snide (adj.)youdaoicibaDictYouDict[snide 词源字典]
1859, thieves' slang, "counterfeit, sham, bad, spurious," of unknown origin. Of persons, "cunning, sharp," from 1883. Sense of "sneering" is first attested 1933, perhaps via sense of "hypocrisy, malicious gossip" (1902). Related: Sneeringly.[snide etymology, snide origin, 英语词源]