Wow, this is a tough one...I'm gonna give full license for anyone to edit this, but I'm gonna guess that it's "potent", Latin for having much influence and authority. "omni" means all, which in the case of "omnipotent" is the variable of the compound word. Adversely, "impotent" would mean the opposite just by adding a different prefix.
Omnipotent
One word is omnipotent.
Omnipotent
Omnipotent
Omnipotent
I think you mean omnipotent, which means able to do anything. God is omnipotent and omnipresent.
The man was omnipotent in every way, there was no other like him. His words, his looks and manner were beyond our understanding .
The stem word for slyly is sly.
Omnipotent.
The stem of the word monotonous is monotony.
The stem for the word "scoundrel" is "scoundr-".
The word stem for archaeology is "archaeo."