"grimpen" meaning in Anglais

{
  "categories": [
    {
      "kind": "other",
      "name": "Lemmes en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en anglais",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Exemples en anglais à traduire",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "T. S. Eliot, East Coker, 1940",
          "text": "In the middle, not only in the middle of the way\nBut all the way, in a dark wood, in a bramble,\nOn the edge of a grimpen, where is no secure foothold,\nAnd menaced by monsters, fancy lights,\nRisking enchantment."
        }
      ],
      "glosses": [
        "Région marécageuse."
      ],
      "id": "fr-grimpen-en-noun-G3X2hTgh"
    }
  ],
  "word": "grimpen"
}

{
  "categories": [
    "Lemmes en anglais",
    "Noms communs en anglais",
    "anglais"
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Exemples en anglais",
        "Exemples en anglais à traduire"
      ],
      "examples": [
        {
          "ref": "T. S. Eliot, East Coker, 1940",
          "text": "In the middle, not only in the middle of the way\nBut all the way, in a dark wood, in a bramble,\nOn the edge of a grimpen, where is no secure foothold,\nAnd menaced by monsters, fancy lights,\nRisking enchantment."
        }
      ],
      "glosses": [
        "Région marécageuse."
      ]
    }
  ],
  "word": "grimpen"
}