Webster's Revised Unabridged Dictionary · 1913

Tremble

Tremble , intransitive verb

[French trembler, from Latin tremulus trembling, tremulous, from tremere to shake, tremble; akin to Greek {not transcribed}, Lithuanian trimti. Compare Tremulous, Tremor.]

1.
To shake involuntarily, as with fear, cold, or weakness; to quake; to quiver; to shiver; to shudder; -- said of a person or an animal.
I tremble still with fear. — Shakespeare
Frighted Turnus trembled as he spoke. — Dryden
2.
To totter; to shake; -- said of a thing.
The Mount of Sinai, whose gray top Shall tremble. — Milton
3.
To quaver or shake, as sound; to be tremulous; as the voice trembles.

Tremble , noun

An involuntary shaking or quivering.
I am all of a tremble when I think of it. — W. Black