Although copper is the third most  abundant trace mineral in the body (behind iron and zinc), the  total amount of copper in your body is only 75-100 milligrams, less  than the amount of copper in a penny.
Gratuitous. Bestowed or granted without consideration or exchange for something of value. The term gratuitous is applied to deeds, bailments, and other contractual agreements. A gratuity is something given by someone who has no obligation to give and can be used in reference to a bribe or tip. gratuitous. adj. or adv. voluntary or free. gratuitous
Nonchalant means unconcerned, so chalant would theoretically mean worried or overly anxious, but there's no such word in the English language. We borrowed the negative form from the French language, but never bothered to import the root form.