Homicide & Manslaughter
Homicide:
"the killing of another person," early 13th-century, from Old French homicide, from Latin homicidium "manslaughter," from homo "man" (see homunculus) + -cidium "act of killing" (see -cide). The meaning "person who kills another" (late 14th-century) also is from French, from Latin homicida "a murderer," from -cida "killer."
Manslaughter:
mid-14th century, "act, crime, or sin of killing another human being," in battle or not, from man (noun) + slaughter (nound). Replaced Old English mannslæht (Anglian), mannslieht (West Saxon), from slæht, slieht "act of killing" (see slay). Etymologically identical with homicide, but in legal use usually distinguished from murder.
SOURCE: Online Etymology Dictionary
"the killing of another person," early 13th-century, from Old French homicide, from Latin homicidium "manslaughter," from homo "man" (see homunculus) + -cidium "act of killing" (see -cide). The meaning "person who kills another" (late 14th-century) also is from French, from Latin homicida "a murderer," from -cida "killer."
Manslaughter:
mid-14th century, "act, crime, or sin of killing another human being," in battle or not, from man (noun) + slaughter (nound). Replaced Old English mannslæht (Anglian), mannslieht (West Saxon), from slæht, slieht "act of killing" (see slay). Etymologically identical with homicide, but in legal use usually distinguished from murder.
SOURCE: Online Etymology Dictionary