Akademik

tremor
n. & v.
—n.
1 a shaking or quivering.
2 a thrill (of fear or exultation etc.).
3 (in full earth tremor) a slight earthquake.
—v.intr. undergo a tremor or tremors.
Etymology: ME f. OF tremour & L tremor f. tremere tremble

Useful english dictionary. 2012.