to shake with a slight but rapid motion; vibrate tremulously; tremble.

the act or state of quivering; a tremble or tremor.

noun

quiet , stillness

verb

be still

noun

convulsion , flash , glimmer , glitter , oscillation , palpitation , pulsation , shake , shimmer , shiver , shudder , sparkle , spasm , throb , tic , tremble , tremor , twinkle , quake , thrill , twitch

verb

agitate , beat , convulse , dither , jitter , oscillate , palpitate , pulsate , pulse , quake , quaver , shiver , shudder , thrill , throb , tremble , tremor , twitter , vibrate , flutter , jerk , quick , shake , sheaf , spasm , twinkle