"knee-cords" meaning in English

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      "expansion": "knee-cords pl (plural only)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "ref": "1936, Norman Lindsay, The Flyaway Highway, Sydney: Angus and Robertson, page 16:",
          "text": "A very spirited affair it looked with its red body and yellow wheels, bouncing about on its high C springs [...] with its four horses going full stretch and two postilions in knee-cords and top-boots laying into the horses in a lather of dust and excitement.",
          "type": "quote"
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      ],
      "glosses": [
        "knee-breeches made of corduroy"
      ],
      "id": "en-knee-cords-en-noun-uC7rWuo7",
      "links": [
        [
          "knee-breeches",
          "knee-breeches"
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          "corduroy",
          "corduroy"
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      "tags": [
        "plural",
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  "word": "knee-cords"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "ref": "1936, Norman Lindsay, The Flyaway Highway, Sydney: Angus and Robertson, page 16:",
          "text": "A very spirited affair it looked with its red body and yellow wheels, bouncing about on its high C springs [...] with its four horses going full stretch and two postilions in knee-cords and top-boots laying into the horses in a lather of dust and excitement.",
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      ],
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        [
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          "knee-breeches"
        ],
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          "corduroy",
          "corduroy"
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      "tags": [
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  ],
  "word": "knee-cords"
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