"y avoir" meaning in Middle French

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "fr",
            "2": "y avoir"
          },
          "expansion": "French: y avoir",
          "name": "desc"
        }
      ],
      "text": "French: y avoir"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "frm",
        "2": "fro",
        "3": "i avoir"
      },
      "expansion": "Old French i avoir",
      "name": "inh"
    },
    {
      "args": {
        "1": "frm",
        "2": "la",
        "3": "hīc",
        "4": "",
        "5": "here"
      },
      "expansion": "Latin hīc (“here”)",
      "name": "der"
    }
  ],
  "etymology_text": "Old French i avoir, from Latin hīc (“here”) and habēre (“to have”).",
  "head_templates": [
    {
      "args": {
        "1": "frm",
        "2": "verb",
        "3": "impersonal",
        "cat2": "impersonal verbs"
      },
      "expansion": "y avoir (impersonal)",
      "name": "head"
    }
  ],
  "lang": "Middle French",
  "lang_code": "frm",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Middle French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "There is a knight in this forest, the greatest and most marvellous that you will ever see.",
          "ref": "1488, Jean Dupré, Lancelot du Lac, page 77:",
          "text": "Il y a ung chevalier en ceste forest le plus grant et le plus merveilleux que vos veissiez oncques.",
          "type": "quote"
        }
      ],
      "glosses": [
        "there be"
      ],
      "id": "en-y_avoir-frm-verb-H3~Yim6a",
      "links": [
        [
          "there be",
          "there be#English"
        ]
      ],
      "tags": [
        "impersonal"
      ]
    }
  ],
  "word": "y avoir"
}

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "fr",
            "2": "y avoir"
          },
          "expansion": "French: y avoir",
          "name": "desc"
        }
      ],
      "text": "French: y avoir"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "frm",
        "2": "fro",
        "3": "i avoir"
      },
      "expansion": "Old French i avoir",
      "name": "inh"
    },
    {
      "args": {
        "1": "frm",
        "2": "la",
        "3": "hīc",
        "4": "",
        "5": "here"
      },
      "expansion": "Latin hīc (“here”)",
      "name": "der"
    }
  ],
  "etymology_text": "Old French i avoir, from Latin hīc (“here”) and habēre (“to have”).",
  "head_templates": [
    {
      "args": {
        "1": "frm",
        "2": "verb",
        "3": "impersonal",
        "cat2": "impersonal verbs"
      },
      "expansion": "y avoir (impersonal)",
      "name": "head"
    }
  ],
  "lang": "Middle French",
  "lang_code": "frm",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Middle French entries with incorrect language header",
        "Middle French impersonal verbs",
        "Middle French lemmas",
        "Middle French multiword terms",
        "Middle French terms derived from Latin",
        "Middle French terms derived from Old French",
        "Middle French terms inherited from Old French",
        "Middle French terms with quotations",
        "Middle French verbs",
        "Pages with 2 entries",
        "Pages with entries"
      ],
      "examples": [
        {
          "english": "There is a knight in this forest, the greatest and most marvellous that you will ever see.",
          "ref": "1488, Jean Dupré, Lancelot du Lac, page 77:",
          "text": "Il y a ung chevalier en ceste forest le plus grant et le plus merveilleux que vos veissiez oncques.",
          "type": "quote"
        }
      ],
      "glosses": [
        "there be"
      ],
      "links": [
        [
          "there be",
          "there be#English"
        ]
      ],
      "tags": [
        "impersonal"
      ]
    }
  ],
  "word": "y avoir"
}