Webster’s Revised Unabridged Dictionary · 1913
Rut
Rut (rŭt), n. [F. rut, OF. ruit, L. rugitus a roaring, fr. rugire to roar; - - so called from the noise made by deer in rutting time.] 1. (Physiol.) Sexual desire or œstrus of deer, cattle, and various other mammals; heat; also, the period during which the œstrus exists.
2. Roaring, as of waves breaking upon the shore; rote. See Rote.
Rut, v. i. [imp. & p. p. Rutted; p. pr. & vb. n. Rutting.] To have a strong sexual impulse at the reproductive period; — said of deer, cattle, etc.
Rut, v. t. To cover in copulation. Dryden.
Rut, n. [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, v. t. To make a rut or ruts in; — chiefly used as a past participle or a participial adj.; as, a rutted road.