"enz" meaning in Old French

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "fr",
            "2": "endéans"
          },
          "expansion": "French: endéans",
          "name": "desc"
        }
      ],
      "text": "French: endéans"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "fro",
        "2": "la",
        "3": "intus"
      },
      "expansion": "Latin intus",
      "name": "inh"
    }
  ],
  "etymology_text": "From Latin intus.",
  "head_templates": [
    {
      "args": {
        "1": "fro",
        "2": "preposition"
      },
      "expansion": "enz",
      "name": "head"
    }
  ],
  "lang": "Old French",
  "lang_code": "fro",
  "pos": "prep",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old French prepositions",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "in; inside"
      ],
      "id": "en-enz-fro-prep-TjSM~~Ug",
      "links": [
        [
          "in",
          "in"
        ],
        [
          "inside",
          "inside"
        ]
      ],
      "synonyms": [
        {
          "word": "dedens"
        },
        {
          "word": "ens"
        }
      ]
    }
  ],
  "word": "enz"
}

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "fr",
            "2": "endéans"
          },
          "expansion": "French: endéans",
          "name": "desc"
        }
      ],
      "text": "French: endéans"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "fro",
        "2": "la",
        "3": "intus"
      },
      "expansion": "Latin intus",
      "name": "inh"
    }
  ],
  "etymology_text": "From Latin intus.",
  "head_templates": [
    {
      "args": {
        "1": "fro",
        "2": "preposition"
      },
      "expansion": "enz",
      "name": "head"
    }
  ],
  "lang": "Old French",
  "lang_code": "fro",
  "pos": "prep",
  "senses": [
    {
      "categories": [
        "Old French entries with incorrect language header",
        "Old French lemmas",
        "Old French prepositions",
        "Old French terms derived from Latin",
        "Old French terms inherited from Latin",
        "Pages with 2 entries",
        "Pages with entries"
      ],
      "glosses": [
        "in; inside"
      ],
      "links": [
        [
          "in",
          "in"
        ],
        [
          "inside",
          "inside"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "dedens"
    },
    {
      "word": "ens"
    }
  ],
  "word": "enz"
}