The word <em>mistreated </em>comes from the "treat" family.
First there is the verb to treat, then the noun treat, then the adjective treated, then the noun treatment, then you have the verb to mistreat, and then in the end you have the noun mistreatment and the adjective mistreated.
-<span>D. chro´ ·mo·some is the answer I found!</span>
The lines are from Ode to the West Wind by Percy Bysshe Shelley. And they mean that time has weighed down his spirit, that previously was "tameless, and swift, and proud"
So the answer is d. feels that his spirit resembles the wind