There are many verbs for killing in Latin. One of the many is occido, occidere. The 2nd person for that verb would be occidis - 'you kill'.
lo pola
The latin root meaning for cise is to cut
if I told you I would have to kill you.
to cut or to kill
Must kill = Necare + (conj. of Debere.) e.g. Necare debeo = I must kill.
It is Latin, literally translated as "not kill" or don't kill. Necant is the plural present verb of to kill.
The root word for decision is "decidere," which comes from the Latin word "decidere" meaning "to cut off."
Necare is to kill. It applies to any living creature.
neco necare
From Wikipedia: Homicide (Latin homicidium, homo human being + caedere to cut, kill)
Must kill = Necare + (conj. of Debere.) e.g. Necare debeo = I must kill.
Matricide: From the Latin words for mother and kill