verb
implore
im-PLOR/ɪmˈplɔːr/
To beg earnestly or desperately.
Kneeling with clasped hands, the woman implores the man for help.

Etymology
The combination probably pictured calling upon someone with weeping or pleading tearfully. That image helps explain the urgency of imploring: it is an earnest appeal for help, not simply a request.
In context
I implore of you not to betray me, or tell Don Quixote who I am;
More examples
- I implore you to reconsider your decision.
- The stranded hikers implored passing drivers to stop.
- She keeps imploring him for another chance.
Forms
implore · implores · implored · imploring