nisus

An effort or endeavor to realize an aim.

The generative impulse occurring periodically, as with many creatures in the spring.

Effort; endeavor; conatus.

A genus of small hawks of the family Falconidæ, containing such as are called in Great Britain sparrow-hawks. See Accipiter.

A striving; an effort; a conatus.

The periodic procreative desire manifested in the spring by birds, etc.

The contraction of the diaphragm and abdominal muscles to evacuate feces or urine.

a mental or physical effort to attain a specific goal; a striving

an effortful attempt to attain a goal