"thornbak" meaning in Middle English

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            "1": "en",
            "2": "thornback"
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          "expansion": "English: thornback",
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      ],
      "text": "English: thornback"
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        "2": "thorn",
        "3": "bak"
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  ],
  "etymology_text": "From thorn + bak.",
  "forms": [
    {
      "form": "thornebakkes",
      "tags": [
        "plural"
      ]
    }
  ],
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      "expansion": "thornbak",
      "name": "head"
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      "args": {
        "1": "thornebakkes"
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      "expansion": "thornbak (plural thornebakkes)",
      "name": "enm-noun"
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  ],
  "lang": "Middle English",
  "lang_code": "enm",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "57 43",
          "kind": "other",
          "name": "Middle English entries with incorrect language header",
          "parents": [
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      ],
      "glosses": [
        "The thornback ray (Raja clavata)."
      ],
      "id": "en-thornbak-enm-noun-lx01zJiz"
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      "categories": [
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        }
      ],
      "glosses": [
        "The stickleback (member of the family Gasterosteidae)."
      ],
      "id": "en-thornbak-enm-noun-yIg0P09Z",
      "links": [
        [
          "stickleback",
          "stickleback#English"
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        [
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          "Gasterosteidae#Translingual"
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  ],
  "sounds": [
    {
      "ipa": "/ˈθɔrnˌbak/"
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0",
      "word": "thornbacke"
    },
    {
      "_dis1": "0 0",
      "word": "thornbake"
    },
    {
      "_dis1": "0 0",
      "word": "thornebacke"
    },
    {
      "_dis1": "0 0",
      "word": "thornebake"
    },
    {
      "_dis1": "0 0",
      "word": "thornebakke"
    },
    {
      "_dis1": "0 0",
      "word": "þornebake"
    }
  ],
  "word": "thornbak"
}

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    "Middle English lemmas",
    "Middle English nouns",
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  ],
  "etymology_text": "From thorn + bak.",
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    {
      "form": "thornebakkes",
      "tags": [
        "plural"
      ]
    }
  ],
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  "lang_code": "enm",
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        "Entries using missing taxonomic name (species)"
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        "The thornback ray (Raja clavata)."
      ]
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      ],
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          "Gasterosteidae#Translingual"
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  ],
  "sounds": [
    {
      "ipa": "/ˈθɔrnˌbak/"
    }
  ],
  "synonyms": [
    {
      "word": "thornbacke"
    },
    {
      "word": "thornbake"
    },
    {
      "word": "thornebacke"
    },
    {
      "word": "thornebake"
    },
    {
      "word": "thornebakke"
    },
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  "word": "thornbak"
}