murderer

Meanings

1. 1
   noun

   A person who commits murder.

   Neither does a great nation […] debate, with drivelling tears, and diabolical sympathies, whether it ought not piously to save, and nursingly cherish, the lives of its murderers.

2. 2
   noun

   a criminal who commits homicide (who performs the unlawful premeditated killing of another human being)

Etymology

From Middle English murderere; equivalent to murder + -er.