I've is a word that means I have. I'll is a word that means I will.
Pester is a six letter word that means to annoy
Shut means to close.
Chase is a five letter word that means to pursue or hunt.
Energy.
Rest?
Unflagging
A six letter word is regain.
energetic
regain
"Regain" is one word.
After a few weeks of rest, she was able to regain her strength and energy to continue with her training.
"Re-" typically means "again" or "back" in words such as regain, relapse, and relish.
The affix 're-' in the word 'regain' means to do something again or to return to a previous state. In this case, 're' indicates the act of getting back something that was lost or taken away.
"Vigor" is a word that means having a lot of energy or enthusiasm.
The word that means without any energy is "listless."
I've is a word that means I have. I'll is a word that means I will.