Snicker
来自Big Physics
late 17th century: imitative.
wiktionary
US variant of the British snigger, possibly of imitative origin, similar to Dutch snikken(“to gasp; sob”). The noun is first recorded 1836, from the verb. Compare also Scottish smicker(“to smile or laugh in a sniggering or leery way, smirk”). More at smicker.
snick + -er
etymonline
snicker (v.)
"laugh in a half-suppressed way," 1690s, possibly of imitative origin, similar to Dutch snikken "to gasp, sob." Related: Snickered; snickering.
snicker (n.)
"a smothered laugh," 1835, from snicker (v.).
