His prowess on the ping-pong table was legendary, and Appleby won every game he started until the night Orr got tipsy on gin and juice and smashed open Appleby’s forehead with his paddle after Appleby had smashed back each of Orr’s first five serves.
There are no more uses of "prowess" in the book.
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Their defensive prowess helped them win the Super Bowl.
They soon began to boast of their respective superiority to each other in strength and prowess.