"si" meaning in Old Galician-Portuguese

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "fax",
            "2": "sí"
          },
          "expansion": "Fala: sí",
          "name": "desc"
        }
      ],
      "text": "Fala: sí"
    },
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "gl",
            "2": "si"
          },
          "expansion": "Galician: si",
          "name": "desc"
        }
      ],
      "text": "Galician: si"
    },
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "pt",
            "2": "sim"
          },
          "expansion": "Portuguese: sim",
          "name": "desc"
        }
      ],
      "text": "Portuguese: sim"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "roa-opt",
        "2": "la",
        "3": "sic",
        "4": "sīc",
        "5": "thus; so"
      },
      "expansion": "Latin sīc (“thus; so”)",
      "name": "inh"
    },
    {
      "args": {
        "1": "roa-opt",
        "2": "ine-pro",
        "3": "*so",
        "4": "",
        "5": "this, that"
      },
      "expansion": "Proto-Indo-European *so (“this, that”)",
      "name": "inh"
    }
  ],
  "etymology_text": "From Latin sīc (“thus; so”), from Proto-Indo-European *so (“this, that”).",
  "head_templates": [
    {
      "args": {
        "1": "roa-opt",
        "2": "adverbs"
      },
      "expansion": "si",
      "name": "head"
    }
  ],
  "lang": "Old Galician-Portuguese",
  "lang_code": "roa-opt",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Latin links with redundant target parameters",
          "parents": [
            "Links with redundant target parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old Galician-Portuguese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 94 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "yes or no",
          "ref": "13th century CE, Alfonso X of Castile, Cantigas de Santa Maria, Códice de los músicos, cantiga 84 ([[http://www.pbm.com/~lindahl/cantigas/facsimiles/E/194small.gif] facsimile])",
          "text": "ſi ou non"
        }
      ],
      "glosses": [
        "yes, affirmatively"
      ],
      "id": "en-si-roa-opt-adv-LbumJyBM",
      "links": [
        [
          "yes",
          "yes"
        ],
        [
          "affirmatively",
          "affirmatively"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈsi/"
    }
  ],
  "word": "si"
}

{
  "categories": [
    "Pages with 94 entries",
    "Pages with entries",
    "zom:Bodily fluids"
  ],
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "fax",
            "2": "sí"
          },
          "expansion": "Fala: sí",
          "name": "desc"
        }
      ],
      "text": "Fala: sí"
    },
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "gl",
            "2": "si"
          },
          "expansion": "Galician: si",
          "name": "desc"
        }
      ],
      "text": "Galician: si"
    },
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "pt",
            "2": "sim"
          },
          "expansion": "Portuguese: sim",
          "name": "desc"
        }
      ],
      "text": "Portuguese: sim"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "roa-opt",
        "2": "la",
        "3": "sic",
        "4": "sīc",
        "5": "thus; so"
      },
      "expansion": "Latin sīc (“thus; so”)",
      "name": "inh"
    },
    {
      "args": {
        "1": "roa-opt",
        "2": "ine-pro",
        "3": "*so",
        "4": "",
        "5": "this, that"
      },
      "expansion": "Proto-Indo-European *so (“this, that”)",
      "name": "inh"
    }
  ],
  "etymology_text": "From Latin sīc (“thus; so”), from Proto-Indo-European *so (“this, that”).",
  "head_templates": [
    {
      "args": {
        "1": "roa-opt",
        "2": "adverbs"
      },
      "expansion": "si",
      "name": "head"
    }
  ],
  "lang": "Old Galician-Portuguese",
  "lang_code": "roa-opt",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Latin links with redundant target parameters",
        "Old Galician-Portuguese adverbs",
        "Old Galician-Portuguese entries with incorrect language header",
        "Old Galician-Portuguese lemmas",
        "Old Galician-Portuguese terms derived from Latin",
        "Old Galician-Portuguese terms derived from Proto-Indo-European",
        "Old Galician-Portuguese terms inherited from Latin",
        "Old Galician-Portuguese terms inherited from Proto-Indo-European",
        "Pages with 94 entries",
        "Pages with entries"
      ],
      "examples": [
        {
          "english": "yes or no",
          "ref": "13th century CE, Alfonso X of Castile, Cantigas de Santa Maria, Códice de los músicos, cantiga 84 ([[http://www.pbm.com/~lindahl/cantigas/facsimiles/E/194small.gif] facsimile])",
          "text": "ſi ou non"
        }
      ],
      "glosses": [
        "yes, affirmatively"
      ],
      "links": [
        [
          "yes",
          "yes"
        ],
        [
          "affirmatively",
          "affirmatively"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈsi/"
    }
  ],
  "word": "si"
}