put an end to (oneself)
To commit suicide. If you've had thoughts of putting an end to yourself, you should talk to someone.
put an end to (something)
To stop, cease, or conclude something. I'm going to put an end to the corruption in this department once and for all! I wish my sisters would put an end to their bickering and just be civil to one another!
put an end to
Also, put a stop to. Terminate, abolish, as in It's time they put an end to their feud, or The police chief vowed to put a stop to prostitution. This locution is more emphatic than the plain verbs end or stop. [Mid-1600s]