"si" meaning in Old French

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "fr",
            "2": "si"
          },
          "expansion": "French: si",
          "name": "desc"
        }
      ],
      "text": "French: si"
    },
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "nrf",
            "2": "si"
          },
          "expansion": "Norman: si",
          "name": "desc"
        }
      ],
      "text": "Norman: si"
    }
  ],
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "fro",
        "2": "la",
        "3": "sic"
      },
      "expansion": "Latin sic",
      "name": "inh"
    }
  ],
  "etymology_text": "From Latin sic.",
  "forms": [
    {
      "form": "se",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "s'",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "fro",
        "2": "adverbs"
      },
      "expansion": "si",
      "name": "head"
    }
  ],
  "lang": "Old French",
  "lang_code": "fro",
  "pos": "adv",
  "senses": [
    {
      "categories": [],
      "examples": [
        {
          "english": "So he said to him quickly",
          "ref": "c. 1180, Chrétien de Troyes, Lancelot ou le Chevalier de la charrette:",
          "text": "Si li a dit eneslepas",
          "type": "quote"
        }
      ],
      "glosses": [
        "so; thus; in such a way"
      ],
      "id": "en-si-fro-adv-04sEExxt",
      "links": [
        [
          "so",
          "so"
        ],
        [
          "thus",
          "thus"
        ]
      ]
    }
  ],
  "word": "si"
}

{
  "etymology_number": 2,
  "etymology_text": "See se.",
  "forms": [
    {
      "form": "se",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "s'",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "fro",
        "2": "conjunctions"
      },
      "expansion": "si",
      "name": "head"
    }
  ],
  "lang": "Old French",
  "lang_code": "fro",
  "pos": "conj",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "if",
          "word": "se"
        }
      ],
      "categories": [
        {
          "_dis": "6 94",
          "kind": "other",
          "name": "Old French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Alternative form of se (if)"
      ],
      "id": "en-si-fro-conj-GN6BEIih",
      "links": [
        [
          "se",
          "se#Old_French"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "si"
}

{
  "categories": [
    "Old French adverbs",
    "Old French conjunctions",
    "Old French entries with incorrect language header",
    "Old French lemmas",
    "Old French terms derived from Latin",
    "Old French terms inherited from Latin",
    "Pages with 97 entries",
    "Pages with entries",
    "zom:Bodily fluids"
  ],
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "fr",
            "2": "si"
          },
          "expansion": "French: si",
          "name": "desc"
        }
      ],
      "text": "French: si"
    },
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "nrf",
            "2": "si"
          },
          "expansion": "Norman: si",
          "name": "desc"
        }
      ],
      "text": "Norman: si"
    }
  ],
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "fro",
        "2": "la",
        "3": "sic"
      },
      "expansion": "Latin sic",
      "name": "inh"
    }
  ],
  "etymology_text": "From Latin sic.",
  "forms": [
    {
      "form": "se",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "s'",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "fro",
        "2": "adverbs"
      },
      "expansion": "si",
      "name": "head"
    }
  ],
  "lang": "Old French",
  "lang_code": "fro",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Old French terms with quotations"
      ],
      "examples": [
        {
          "english": "So he said to him quickly",
          "ref": "c. 1180, Chrétien de Troyes, Lancelot ou le Chevalier de la charrette:",
          "text": "Si li a dit eneslepas",
          "type": "quote"
        }
      ],
      "glosses": [
        "so; thus; in such a way"
      ],
      "links": [
        [
          "so",
          "so"
        ],
        [
          "thus",
          "thus"
        ]
      ]
    }
  ],
  "word": "si"
}

{
  "categories": [
    "Old French conjunctions",
    "Old French entries with incorrect language header",
    "Old French lemmas",
    "Pages with 97 entries",
    "Pages with entries",
    "zom:Bodily fluids"
  ],
  "etymology_number": 2,
  "etymology_text": "See se.",
  "forms": [
    {
      "form": "se",
      "tags": [
        "alternative"
      ]
    },
    {
      "form": "s'",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "fro",
        "2": "conjunctions"
      },
      "expansion": "si",
      "name": "head"
    }
  ],
  "lang": "Old French",
  "lang_code": "fro",
  "pos": "conj",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "if",
          "word": "se"
        }
      ],
      "glosses": [
        "Alternative form of se (if)"
      ],
      "links": [
        [
          "se",
          "se#Old_French"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "si"
}