quivering
Concise Oxford English Dictionary © 2008 Oxford University Press:
quiver1
▶verb shake or tremble with a slight rapid motion.
■ cause to make a slight rapid motion.
▶noun a slight trembling movement or sound.– derivatives
quivering adjective,
quiveringly adverb,
quivery adjective.
quivering adjective,
quiveringly adverb,
quivery adjective.
– origin ME: from OE cwifer ‘nimble, quick’; the initial qu- is prob. symbolic of quick movement (as in quaver and quick).
Concise Oxford English Dictionary © 2008 Oxford University Press:
quiver2
▶noun an archer's portable case for arrows.
– phrases
an arrow in the quiver one of a number of resources that can be drawn on.
an arrow in the quiver one of a number of resources that can be drawn on.
– origin ME: from Anglo-Norman Fr. quiveir, of W. Gmc origin.
'quivering' also found in these Oxford entries:

