rut

The annual period of sexual activity in male deer and some other mammals.

"The deer are in rut during autumn."

To make a rut or ruts in the ground.

"Heavy vehicles can rut the soft ground."

To be in the rut, referring to male deer's sexual activity.

"Stags rut noisily in the forest."

A boring, unvarying routine or way of life that is difficult to change.

"He felt stuck in a boring rut."

A deep track made in soft ground by a wheel or repeated passage.

"The heavy lorry left deep ruts."