To Worry Excessively, to Endure Mental Anguish
Puzzle 20 of Auction House Hard Pack
Question is: To Worry Excessively, to Endure Mental Anguish
and the answer is: AGONIZE
Word Meaning:
AGONIZE — (intransitive) To writhe with agony; to suffer violent anguish.
Definitions from Wiktionary.