tremor

 
Pronunciation: /ˈtrɛmə/

noun

  • 1an involuntary quivering movement: a disorder that causes tremors and muscle rigidity
  • a tremble or quiver in a person’s voice.
  • a sudden feeling of fear or excitement: a tremor of unease
  • 2 (also earth tremor) a slight earthquake.

verb

[no object]
  • undergo a tremor or tremors: a muscle in my jaw tremored uncontrollably

Origin:

early 17th century: from Latin tremor, from tremere 'to tremble'

Spelling help

The ending of tremor is spelled -or.