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 how to draw illustrations in CLIP STUDIO PAINT in 90 seconds Learn how to draw illustrations in CLIP STUDIO PAINT in 90 seconds
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90 seconds to learn how to play a basic drum fill 90 seconds to learn how to play a basic drum fill