To throb with a muffled rhythmic sound.
To hit (someone or something) as if to make a thump.
To cause to make a thumping sound.
To thud or pound.
A blow that produces a muffled sound.
The sound of such a blow; a thud.
To shake, quiver, or vibrate.
To fear; to be afraid.
A shake, quiver, or vibration.