The Greek word for sleep is ύπνος (hypnos). English words such as hypnosis, hypnotize, etc., derive from this root.
Elucidate
Odometer
Credo
Philanthropy
Rheumatoid arthritis
One word is omnipotent.
Epidermis is the word that most likely means an outer layer of skin.
Most likely pester. I know that's one of the words.
Independent/self supportive.
The state name that means mountainous is "Vermont." The name Vermont comes from the French words for "green mountain," reflecting the state's mountainous terrain and lush forests.
Likely candidate words are: self-made. sure-fire.