“origin / source” in Japanese is 元, read gen, gan, moto (げん, がん, もと). It is a Grade 2 Kyōiku kanji, taught in year 2 of Japanese elementary school, and appears in words such as 元気 (healthy).
What does 元 mean?
元気に あそぶ。
Same sound, different character — the classic trap. Compare them side by side: