90秒で分かる「大丈夫」って何でこんな漢字?

日常会話でよく使う「大丈夫」。よく考えると何で「大きな丈の夫」と書くんでしょう?大丈夫の語源を90秒で学びましょう!
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Learn Japanese vocabulary in 90 seconds - Theme: Fruit! Learn Japanese vocabulary in 90 seconds - Theme: Fruit!