how to say “to kill” in Hebrew
לַהֲרוֹג
Here’s one of the most ancient of words in the Hebrew language, going back to that primeval account of a brother in rage, the story of Cain and Abel.
For example:
הַסַּרְטָן הָרַג אֹתָהּ.
The cancer killed her.
and
לַהֲרוֹג וְלִרְצוֹחַ הֵם לֹא אֹתוֹ דָּבָר.
Killing and murdering are not the same thing.
Note that להרוג and to kill do not specify the intent behind the act. Thus derivations of this active-simple verb include both הֲרִיגָה 
listen and repeat – manslaughter (unintentional killing of another human being) – and הֶרֶג listen and repeat – massacre, slaughter.
listen and repeat – manslaughter (unintentional killing of another human being) – and הֶרֶג listen and repeat – massacre, slaughter.For example:
מִי יִתֵּן וְנִרְאֶה סוֹף לַהֶרֶג.
May we see an end to the slaughter.