manslaying1
/ˈmansleɪɪŋ/Now archaic
noun
The action or an act of killing a human being; homicide, murder.
Origin
Late Middle English; earliest use found in The Wycliffite Bible (early version). From man + slaying.
manslaying2
/ˈmansleɪɪŋ/Now archaic
adjective
That kills or is capable of killing a human being or beings; murderous.
Origin
Early 17th century; earliest use found in Francis Herring (d. 1628), physician. From man + slaying.