"en" meaning in Old Occitan

{
  "head_templates": [
    {
      "args": {
        "1": "pro",
        "2": "pronouns"
      },
      "expansion": "en",
      "name": "head"
    }
  ],
  "lang": "Old Occitan",
  "lang_code": "pro",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old Occitan entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old Occitan pronouns",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "Alas! I thought I knew so much\nabout love, and I know so little [of it]!",
          "text": "12th century, Bernard de Ventadour, Can vei la lauzeta mover\nAilas! Tan cuidava saber\nD'amor, e tan petit en sai,",
          "type": "quotation"
        }
      ],
      "glosses": [
        "of it; of them"
      ],
      "id": "en-en-pro-pron-epL4lYf1",
      "links": [
        [
          "of",
          "of"
        ],
        [
          "it",
          "it"
        ],
        [
          "them",
          "them"
        ]
      ]
    }
  ],
  "word": "en"
}

{
  "categories": [
    "zom:Food and drink"
  ],
  "head_templates": [
    {
      "args": {
        "1": "pro",
        "2": "pronouns"
      },
      "expansion": "en",
      "name": "head"
    }
  ],
  "lang": "Old Occitan",
  "lang_code": "pro",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        "Old Occitan entries with incorrect language header",
        "Old Occitan lemmas",
        "Old Occitan pronouns",
        "Old Occitan terms with quotations"
      ],
      "examples": [
        {
          "english": "Alas! I thought I knew so much\nabout love, and I know so little [of it]!",
          "text": "12th century, Bernard de Ventadour, Can vei la lauzeta mover\nAilas! Tan cuidava saber\nD'amor, e tan petit en sai,",
          "type": "quotation"
        }
      ],
      "glosses": [
        "of it; of them"
      ],
      "links": [
        [
          "of",
          "of"
        ],
        [
          "it",
          "it"
        ],
        [
          "them",
          "them"
        ]
      ]
    }
  ],
  "word": "en"
}