Respuesta :
The creation of the word enthuse from enthusiasm is an example of back formation. The correct answer is option D. Enthuse is a verb that is a 19th-Century back formation from the word enthusiasm. This word is now commonly used at present and is used as a verb that means "to express enthusiasm".
Answer:
(D) Back Formation
Explanation:
Enthuse is a 19 century verb, which nowadays is enthusiasm.