herd (n.1)

Old English heord "herd, flock, company of domestic animals," also, rarely, "a keeping, care, custody," from Proto-Germanic *herdo (source also of Old Norse hjorð, Old High German herta, German Herde, Gothic hairda "herd"), from PIE *kerdh- "a row, group, herd" (source also of Sanskrit śárdhah "herd, troop," Old Church Slavonic čreda "herd," Greek korthys "heap," Lithuanian kerdžius "shepherd"). Of any animals, wild or domestic, from c. 1200; of people, often in a disparaging sense, from c. 1400. Herd instinct in psychology is first recorded 1886.

herd (v.)

mid-13c., "to watch over or herd (livestock);" of animals, "gather in a herd, go in a herd, form a flock," late 14c. From herd (n.1). Transitive sense of "to form (animals, people, etc.) into a herd" is from 1590s. Related: Herded; herding.

herd (n.2)

"keeper of a flock of domestic animals," Old English hierde, from the source of herd (v.). Now obsolete except in compounds. Compare Old Saxon hirdi, Middle Dutch hirde, German Hirte, Old Norse hirðir.

Others are reading

Definitions of herd from WordNet
herd (v.)
cause to herd, drive, or crowd together;
We herded the children into a spare classroom
Synonyms: crowd
herd (v.)
move together, like a herd;
herd (v.)
keep, move, or drive animals;
Who will be herding the cattle when the cowboy dies?
herd (n.)
a group of cattle or sheep or other domestic mammals all of the same kind that are herded by humans;
herd (n.)
a group of wild mammals of one species that remain together: antelope or elephants or seals or whales or zebra;
herd (n.)
a crowd especially of ordinary or undistinguished persons or things;
the children resembled a fairy herd
Synonyms: ruck