Give Up Something Valuable; Offering to a Deity
Puzzle 14 of Tennis Medium Pack
Question is: Give Up Something Valuable; Offering to a Deity
and the answer is: SACRIFICE
Word Meaning:
SACRIFICE — Originally, the killing (and often burning) of a human being or an animal as an offering to a deity; later, also the offering of an object to a deity.
Definitions from Wiktionary.