—v.intr.
1 shiver esp. convulsively from fear, cold, repugnance, etc.
2 feel strong repugnance etc. (shudder to think what might happen).
3 (of a machine etc.) vibrate or quiver.
—n.
1 the act or an instance of shuddering.
2 (in pl.; prec. by the) colloq. a state of shuddering.
Derivatives:
shudderingly adv. shuddery adj.
Etymology: ME shod(d)er f. MDu. schuderen, MLG schoderen f. Gmc
Useful english dictionary. 2012.