What is the bottom of a shoe or boot, or the piece of leather which constitutes the bottom. The "caliga" was a military shoe, with a very thick sole, tied above the instep. Arbuthnot called?

sole — The bottom of a shoe or boot, or the piece of leather which constitutes the bottom. The "caliga" was a military shoe, with a very thick sole, tied above the instep. Arbuthnot. (Webster's 1913.)

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