This is the 14367th most frequent Russian word.
отнес
"Отнес" means "carried away" or "took (something) somewhere."
Here, 'отнес' is used in its literal sense, meaning 'took (an item)'.
Я отнес книгу обратно в библиотеку.
I took the book back to the library.
In this sentence, 'отнес' is used figuratively, meaning 'ascribed' or 'credited'.
Он отнес этот успех к своей настойчивости.
He ascribed this success to his persistence.
In this case, 'отнес' figuratively means 'brought up', indicating the action of presenting concerns.