"sé" meaning in Old Irish

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "ga",
            "2": "sé",
            "id": "six"
          },
          "expansion": "Irish: sé",
          "name": "desc"
        }
      ],
      "text": "Irish: sé"
    },
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "gv",
            "2": "shey"
          },
          "expansion": "Manx: shey",
          "name": "desc"
        }
      ],
      "text": "Manx: shey"
    },
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "gd",
            "2": "sia"
          },
          "expansion": "Scottish Gaelic: sia",
          "name": "desc"
        }
      ],
      "text": "Scottish Gaelic: sia"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "sga",
        "2": "cel-pro",
        "3": "*swexs"
      },
      "expansion": "Proto-Celtic *swexs",
      "name": "inh"
    },
    {
      "args": {
        "1": "sga",
        "2": "ine-pro",
        "3": "*swéḱs"
      },
      "expansion": "Proto-Indo-European *swéḱs",
      "name": "inh"
    }
  ],
  "etymology_text": "From Proto-Celtic *swexs, from Proto-Indo-European *swéḱs.",
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "2": "numeral",
        "cat2": "cardinal numbers"
      },
      "expansion": "sé",
      "name": "head"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "num",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "name": "Old Irish cardinal numbers",
          "parents": [
            "Cardinal numbers",
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old Irish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 20 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "6 5 0 0 6 1 1 3 3 3 0 0 0 4 0 3 6 0 0 1 6 4 4 4 1 4 4 6 5 0 0 0 2 3 1 1 0 7 6 1 1",
          "kind": "other",
          "name": "Pages with 20 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "5 4 0 0 5 1 0 3 3 3 0 0 0 4 0 3 5 0 0 1 5 5 5 5 0 5 5 5 4 0 0 0 2 3 0 0 0 5 5 2 1",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "six"
      ],
      "id": "en-sé-sga-num-RHeNgjZe",
      "links": [
        [
          "six",
          "six"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sʲeː/"
    }
  ],
  "word": "sé"
}

{
  "categories": [
    "Pages with 20 entries",
    "Pages with entries"
  ],
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "ga",
            "2": "sé",
            "id": "six"
          },
          "expansion": "Irish: sé",
          "name": "desc"
        }
      ],
      "text": "Irish: sé"
    },
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "gv",
            "2": "shey"
          },
          "expansion": "Manx: shey",
          "name": "desc"
        }
      ],
      "text": "Manx: shey"
    },
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "gd",
            "2": "sia"
          },
          "expansion": "Scottish Gaelic: sia",
          "name": "desc"
        }
      ],
      "text": "Scottish Gaelic: sia"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "sga",
        "2": "cel-pro",
        "3": "*swexs"
      },
      "expansion": "Proto-Celtic *swexs",
      "name": "inh"
    },
    {
      "args": {
        "1": "sga",
        "2": "ine-pro",
        "3": "*swéḱs"
      },
      "expansion": "Proto-Indo-European *swéḱs",
      "name": "inh"
    }
  ],
  "etymology_text": "From Proto-Celtic *swexs, from Proto-Indo-European *swéḱs.",
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "2": "numeral",
        "cat2": "cardinal numbers"
      },
      "expansion": "sé",
      "name": "head"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "num",
  "senses": [
    {
      "categories": [
        "Old Irish cardinal numbers",
        "Old Irish entries with incorrect language header",
        "Old Irish lemmas",
        "Old Irish numerals",
        "Old Irish terms derived from Proto-Celtic",
        "Old Irish terms derived from Proto-Indo-European",
        "Old Irish terms inherited from Proto-Celtic",
        "Old Irish terms inherited from Proto-Indo-European",
        "Pages with 20 entries",
        "Pages with entries"
      ],
      "glosses": [
        "six"
      ],
      "links": [
        [
          "six",
          "six"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sʲeː/"
    }
  ],
  "word": "sé"
}