Old English beofor, befer (earlier bebr), from Proto-Germanic *bebruz (source also of Old Saxon bibar, Old Norse bjorr, Middle Dutch and Dutch bever, Low German bever, Old High German bibar, German Bi [..]

large, semiaquatic rodent with sharp teeth, a flat tail, and the ability to build dams.

  face guard of a helmet.

biber

To dream of seeing beavers, foretells that you will obtain comfortable circumstances by patient striving. If you dream of killing them for their skins, you will be accused of fraud and improper conduct toward the innocent.   

A semi:aquatic animal of the rodent family. The tail is considered the best part to eat. Care must be taken when skinning to avoid severing the musk gland, which will permeate the entire flesh when cu [..]

(n) a man's hat with a tall crown; usually covered with silk or with beaver fur(n) a movable piece of armor on a medieval helmet used to protect the lower face(n) a hat made with the fur of a bea [..]

A hat; so called from its being made of beaver skins.

That part of the helmet which lifted up to enable the wearer to drink. Similarly bever, the afternoon draught in the harvest-field, called fours’s. (Italian, bevere, to drink; Spanish, beber; [..]

A mixture of white, gray, brown, and black hairs. Color definitions may vary by breed. Always check the breed standard for the definitive color description.

A mixture of white, gray, brown, and black hairs. Color definitions may vary by breed. Always check the breed standard for the definitive color description.

A mixture of white, gray, brown, and black hairs. Color definitions may vary by breed. Always check the breed standard for the definitive color description.

the lower part of a helmet

In addition to any other slang meanings of this term, it's an aviator's endearing appellation for the inflight refueling basket, which see.

redouble. In backgammon, to beaver is to redouble and maintain control of the cube, an optional rule.

An immediate redouble by a player who just accepted a double

(slang) redouble

A feature used in money game play (or chouette). For example, if you are doubled to 2 by an opponent, and you believe you are in an as good or better position, you can accept the double and say “Beave [..]

in West Virginia.