Webster's Revised Unabridged Dictionary · 1913

Rut

Rut , noun

[French rut, Old French ruit, Latin rugitus a roaring, from rugire to roar; -- so called from the noise made by deer in rutting time.]

1.
(Physiology) Sexual desire or oestrus of deer, cattle, and various other mammals; heat; also, the period during which the oestrus exists.
2.
Roaring, as of waves breaking upon the shore; rote. See Rote.

Rut , intransitive verb

To have a strong sexual impulse at the reproductive period; -- said of deer, cattle, etc.

Rut , transitive verb

To cover in copulation. — Dryden

Rut , noun

[variant of route.]

A track worn by a wheel or by habitual passage of anything; a groove in which anything runs. Also used figuratively.

Rut , transitive verb

To make a rut or ruts in; -- chiefly used as a past participle or a participial adj.; as, a rutted road.