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intr.v. quaked, quak·ing, quakes
1. To shake or tremble, as from instability or shock.
2. To shiver or shudder, as with cold or from strong emotion. See Synonyms at shake.
1. An instance of quaking.
2. An earthquake.

[Middle English quaken, from Old English cwacian.]

quak′y adj.


unstable or unsafe to walk on, as a bog or quicksand: a quaking bog; quaking sands.
ˈquakingly adv
References in classic literature ?
The frosty ground creaked beneath her feet, and she trembled at the sound; every quaking leaf and fluttering shadow sent the blood backward to her heart, and quickened her footsteps.
Hope and the future for me are not in lawns and cultivated fields, not in towns and cities, but in the impervious and quaking swamps.
Since then, they merely put on a bold outside -- at heart they are quaking.
He sprang out of bed, but his quaking knees sunk under him and he fell to the floor.