90秒で分かる「たくさん」はなぜ「沢」と「山」?

沢山(たくさん)って「いっぱいある」という意味ですが、なぜこんな漢字なんでしょう?沢山の語源を90秒でサクッと理解しちゃいましょう!
Learn Japanese vocabulary in 90 seconds - Theme: Appearance! Learn Japanese vocabulary in 90 seconds - Theme: Appearance!
Learn common Kansai-ben words in 90 seconds! Learn common Kansai-ben words in 90 seconds!
Learn about Japanese Holidays in 90 seconds! Learn about Japanese Holidays in 90 seconds!
Learn about “Omotenashi” Culture in Japan in 90 seconds Learn about “Omotenashi” Culture in Japan in 90 seconds