snicker (v.)youdaoicibaDictYouDict[snicker 词源字典]
"laugh in a half-suppressed way," 1690s, possibly of imitative origin, similar to Dutch snikken "to gasp, sob." Related: Snickered; snickering.[snicker etymology, snicker origin, 英语词源]
snicker (n.)youdaoicibaDictYouDict
"a smothered laugh," 1835, from snicker (v.).