Webster's Revised Unabridged Dictionary · 1913

Cow

Cow (kīn) , noun

[Old English cu, cou, Anglo-Saxon ; akin to Dutch koe, German kuh, Old High German kuo, Icelandic kȳr, Danish & Swedish ko, Latin bos ox, cow, Greek boy^s, Sanskrit . r223. Compare Beef, Bovine, Bucolic, Butter, Nylghau.]

1.
The mature female of bovine animals.
2.
The female of certain large mammals, as whales, seals, etc.

Cow (kou) , noun

[See Cowl a hood.]

A chimney cap; a cowl

Cow (koud) , transitive verb

[Compare Icelandic kuga, Swedish kufva to check, subdue, Danish kue. Compare Cuff, transitive verb]

To depress with fear; to daunt the spirits or courage of; to overawe.
To vanquish a people already cowed. — Shakespeare
THe French king was cowed. — J. R. Green

Cow , noun

[Probably from same root as cow, transitive verb]

(Mining) A wedge, or brake, to check the motion of a machine or car; a chock. — Knight