"sídach" meaning in Middle Irish

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "gd",
            "2": "sidheach"
          },
          "expansion": "Scottish Gaelic: sidheach",
          "name": "desc"
        }
      ],
      "text": "Scottish Gaelic: sidheach"
    }
  ],
  "forms": [
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "sídach",
      "source": "mutation",
      "tags": [
        "error-unrecognized-form"
      ]
    },
    {
      "form": "ṡídach",
      "source": "mutation",
      "tags": [
        "error-unrecognized-form"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "mga",
        "2": "noun"
      },
      "expansion": "sídach",
      "name": "head"
    }
  ],
  "lang": "Middle Irish",
  "lang_code": "mga",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Middle Irish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Middle Irish links with redundant target parameters",
          "parents": [
            "Links with redundant target parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "mga",
          "name": "Canids",
          "orig": "mga:Canids",
          "parents": [
            "Carnivores",
            "Mammals",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        },
        {
          "_dis": "40 26 34",
          "kind": "other",
          "name": "Old Irish adjectives suffixed with -ach",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "56 18 26",
          "kind": "other",
          "name": "Old Irish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "82 8 10",
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "73 12 15",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "wolf"
      ],
      "id": "en-sídach-mga-noun-92thuWLb",
      "links": [
        [
          "wolf",
          "wolf"
        ]
      ],
      "synonyms": [
        {
          "word": "cú"
        },
        {
          "word": "cú allaid"
        },
        {
          "word": "macc tíre"
        }
      ]
    }
  ],
  "word": "sídach"
}

{
  "categories": [
    "Old Irish adjectives",
    "Old Irish adjectives suffixed with -ach",
    "Old Irish entries with incorrect language header",
    "Old Irish lemmas",
    "Old Irish o/ā-stem adjectives",
    "Pages with 2 entries",
    "Pages with entries"
  ],
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "gd",
            "2": "sidheach"
          },
          "expansion": "Scottish Gaelic: sidheach",
          "name": "desc"
        }
      ],
      "text": "Scottish Gaelic: sidheach"
    }
  ],
  "forms": [
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "sídach",
      "source": "mutation",
      "tags": [
        "error-unrecognized-form"
      ]
    },
    {
      "form": "ṡídach",
      "source": "mutation",
      "tags": [
        "error-unrecognized-form"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "mga",
        "2": "noun"
      },
      "expansion": "sídach",
      "name": "head"
    }
  ],
  "lang": "Middle Irish",
  "lang_code": "mga",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Middle Irish entries with incorrect language header",
        "Middle Irish lemmas",
        "Middle Irish links with redundant target parameters",
        "Middle Irish nouns",
        "Pages with 2 entries",
        "Pages with entries",
        "mga:Canids"
      ],
      "glosses": [
        "wolf"
      ],
      "links": [
        [
          "wolf",
          "wolf"
        ]
      ],
      "synonyms": [
        {
          "word": "cú"
        },
        {
          "word": "cú allaid"
        },
        {
          "word": "macc tíre"
        }
      ]
    }
  ],
  "word": "sídach"
}

{
  "called_from": "inflection/865",
  "msg": "inflection table: IF WITHOUT ELSE EVALS False: sídach/Middle Irish 'radical' base_tags=set()",
  "path": [
    "sídach"
  ],
  "section": "Middle Irish",
  "subsection": "noun",
  "title": "sídach",
  "trace": ""
}

{
  "called_from": "inflection/735",
  "msg": "inflection table: unrecognized header: 'lenition'",
  "path": [
    "sídach"
  ],
  "section": "Middle Irish",
  "subsection": "noun",
  "title": "sídach",
  "trace": ""
}

{
  "called_from": "inflection/735",
  "msg": "inflection table: unrecognized header: 'nasalization'",
  "path": [
    "sídach"
  ],
  "section": "Middle Irish",
  "subsection": "noun",
  "title": "sídach",
  "trace": ""
}