"schak" meaning in Middle English

{
  "derived": [
    {
      "_dis1": "0 0",
      "word": "schakelen"
    }
  ],
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "en",
            "2": "shake",
            "3": ";",
            "4": "shack#Etymology 2"
          },
          "expansion": "English: shake; shack",
          "name": "desc"
        }
      ],
      "text": "English: shake; shack"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "enm",
        "2": "schaken",
        "nocap": "1"
      },
      "expansion": "back-formation from schaken",
      "name": "back-formation"
    }
  ],
  "etymology_text": "A back-formation from schaken.",
  "forms": [
    {
      "form": "schakke",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "shak",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "shake",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "enm",
        "2": "noun"
      },
      "expansion": "schak",
      "name": "head"
    }
  ],
  "lang": "Middle English",
  "lang_code": "enm",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A sudden forwards motion; a charge or thrust."
      ],
      "id": "en-schak-enm-noun-3f6T14Qh",
      "links": [
        [
          "forward",
          "forward"
        ],
        [
          "charge",
          "charge"
        ],
        [
          "thrust",
          "thrust"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "11 89",
          "kind": "lifeform",
          "langcode": "enm",
          "name": "Livestock",
          "orig": "enm:Livestock",
          "parents": [
            "Agriculture",
            "Animals",
            "Applied sciences",
            "Lifeforms",
            "Sciences",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "34 66",
          "kind": "topical",
          "langcode": "enm",
          "name": "Violence",
          "orig": "enm:Violence",
          "parents": [
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Fallen grain reserved for livestock."
      ],
      "id": "en-schak-enm-noun-QTJvevA-",
      "links": [
        [
          "grain",
          "grain"
        ],
        [
          "livestock",
          "livestock"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ʃaːk/"
    },
    {
      "ipa": "/ʃak/"
    }
  ],
  "word": "schak"
}

{
  "categories": [
    "Middle English back-formations",
    "Middle English entries with incorrect language header",
    "Middle English lemmas",
    "Middle English nouns",
    "Pages with 2 entries",
    "Pages with entries",
    "enm:Livestock",
    "enm:Violence"
  ],
  "derived": [
    {
      "word": "schakelen"
    }
  ],
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "en",
            "2": "shake",
            "3": ";",
            "4": "shack#Etymology 2"
          },
          "expansion": "English: shake; shack",
          "name": "desc"
        }
      ],
      "text": "English: shake; shack"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "enm",
        "2": "schaken",
        "nocap": "1"
      },
      "expansion": "back-formation from schaken",
      "name": "back-formation"
    }
  ],
  "etymology_text": "A back-formation from schaken.",
  "forms": [
    {
      "form": "schakke",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "shak",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "shake",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "enm",
        "2": "noun"
      },
      "expansion": "schak",
      "name": "head"
    }
  ],
  "lang": "Middle English",
  "lang_code": "enm",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A sudden forwards motion; a charge or thrust."
      ],
      "links": [
        [
          "forward",
          "forward"
        ],
        [
          "charge",
          "charge"
        ],
        [
          "thrust",
          "thrust"
        ]
      ]
    },
    {
      "glosses": [
        "Fallen grain reserved for livestock."
      ],
      "links": [
        [
          "grain",
          "grain"
        ],
        [
          "livestock",
          "livestock"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ʃaːk/"
    },
    {
      "ipa": "/ʃak/"
    }
  ],
  "word": "schak"
}