"rereward" meaning in Middle English

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "en",
            "2": "rearward"
          },
          "expansion": "English: rearward",
          "name": "desc"
        },
        {
          "args": {
            "1": "obsolete in this sense"
          },
          "expansion": "(obsolete in this sense)",
          "name": "q"
        }
      ],
      "text": "English: rearward (obsolete in this sense)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "enm",
        "2": "xno",
        "3": "rerewarde"
      },
      "expansion": "Anglo-Norman rerewarde",
      "name": "bor"
    },
    {
      "args": {
        "1": "enm",
        "2": "rere",
        "3": "ward"
      },
      "expansion": "rere + ward",
      "name": "af"
    }
  ],
  "etymology_text": "Borrowed from Anglo-Norman rerewarde; equivalent to rere + ward.",
  "head_templates": [
    {
      "args": {
        "1": "enm",
        "2": "noun"
      },
      "expansion": "rereward",
      "name": "head"
    }
  ],
  "lang": "Middle English",
  "lang_code": "enm",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "100 0",
          "kind": "topical",
          "langcode": "enm",
          "name": "Military",
          "orig": "enm:Military",
          "parents": [
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "The back side of an army; the forces at the rear."
      ],
      "id": "en-rereward-enm-noun-bGRBWNeL"
    },
    {
      "categories": [],
      "glosses": [
        "A strike from behind."
      ],
      "id": "en-rereward-enm-noun-GVxqmsRw",
      "raw_glosses": [
        "(rare) A strike from behind."
      ],
      "tags": [
        "rare"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈrɛːr(ə)ward(ə)/"
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0",
      "word": "rerewarde"
    },
    {
      "_dis1": "0 0",
      "word": "reirwarde"
    },
    {
      "_dis1": "0 0",
      "word": "reerwarde"
    },
    {
      "_dis1": "0 0",
      "word": "rierwarde"
    }
  ],
  "word": "rereward"
}

{
  "categories": [
    "Middle English compound terms",
    "Middle English entries with incorrect language header",
    "Middle English entries with topic categories using raw markup",
    "Middle English lemmas",
    "Middle English nouns",
    "Middle English terms borrowed from Anglo-Norman",
    "Middle English terms derived from Anglo-Norman",
    "Middle English terms with IPA pronunciation",
    "enm:Military"
  ],
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "en",
            "2": "rearward"
          },
          "expansion": "English: rearward",
          "name": "desc"
        },
        {
          "args": {
            "1": "obsolete in this sense"
          },
          "expansion": "(obsolete in this sense)",
          "name": "q"
        }
      ],
      "text": "English: rearward (obsolete in this sense)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "enm",
        "2": "xno",
        "3": "rerewarde"
      },
      "expansion": "Anglo-Norman rerewarde",
      "name": "bor"
    },
    {
      "args": {
        "1": "enm",
        "2": "rere",
        "3": "ward"
      },
      "expansion": "rere + ward",
      "name": "af"
    }
  ],
  "etymology_text": "Borrowed from Anglo-Norman rerewarde; equivalent to rere + ward.",
  "head_templates": [
    {
      "args": {
        "1": "enm",
        "2": "noun"
      },
      "expansion": "rereward",
      "name": "head"
    }
  ],
  "lang": "Middle English",
  "lang_code": "enm",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "The back side of an army; the forces at the rear."
      ]
    },
    {
      "categories": [
        "Middle English terms with rare senses"
      ],
      "glosses": [
        "A strike from behind."
      ],
      "raw_glosses": [
        "(rare) A strike from behind."
      ],
      "tags": [
        "rare"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈrɛːr(ə)ward(ə)/"
    }
  ],
  "synonyms": [
    {
      "word": "rerewarde"
    },
    {
      "word": "reirwarde"
    },
    {
      "word": "reerwarde"
    },
    {
      "word": "rierwarde"
    }
  ],
  "word": "rereward"
}