herd

Concise Oxford English Dictionary © 2008 Oxford University Press:
herd/hɜːd/

▶noun

• 1 a large group of animals, especially hoofed mammals, that live or are kept together.

• 2 derogatory a large group or class of people.

▶verb

• 1 move in a large group.

• 2 keep or look after (livestock).

– derivatives
herder noun.

– origin OE heord, of Gmc origin.