quiver

definition: the act of vibrating
example:
speech part: noun
synonyms: vibration
definition: case for holding arrows
example:
speech part: noun
synonyms:
definition: an almost pleasurable sensation of fright
example:
speech part: noun
synonyms: shudder
definition: a shaky motion
example:
speech part: noun
synonyms: vibration
definition: move back and forth very rapidly
example:
speech part: verb
synonyms: flutter
definition: move with or as if with a regular alternating motion
example:
speech part: verb
synonyms: beat
definition: shake with fast, tremulous movements
example:
speech part: verb
synonyms: quake palpitate

How quiver is being used?