drove
noun /drəʊv/
  /drəʊv/
[usually plural]- a large number of people or animals, often moving or doing something as a group
- droves of tourists
 - People were leaving the countryside in droves to look for work in the cities.
 - The gallery had its busiest day ever, as droves of people poured into its new premises by the docks.
 - Tourists started arriving in their droves.
 
Word OriginOld English drāf, related to drīfan ‘to drive’.