Astur is a genus containing hawks, goshawks and sparrowhawks in the family Accipitridae. 
The species of this bird genus were formerly placed in the genus Accipiter.

Accipitridae from Latin accipiter/accipitri- "hawk".
accipitrinus Latin accipitrinus hawk-like (accipiter: hawk).
The genus name astur is from Latin astur, asturis meaning "hawk".