“prosper / arise” in Japanese is 興, read kou, kyou, oko (こう, きょう, おこ). It is a Grade 5 Kyōiku kanji, taught in year 5 of Japanese elementary school, and appears in words such as 復興 (revival).
What does 興 mean?
音楽に興味がある。
Same sound, different character — the classic trap. Compare them side by side: