رعش

رُعَاشٌ ذ [and ↓ رِعْشَةٌ] A tremour, quivering, quaking, or shivering, that befalls a man in consequence of a disease that attacks him, not quitting him. (TA.) You say, ↓ بِهِ رِعْشَةٌ and رُعَاشٌ [ In him is a tremour, &c.]. (A.)