"áes síde" meaning in Old Irish

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "mga",
            "2": "áes side"
          },
          "expansion": "Middle Irish: áes side\nIrish: aos sí",
          "name": "desctree"
        }
      ],
      "text": "Middle Irish: áes side\nIrish: aos sí"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "sga",
        "2": "áes",
        "3": "síd",
        "t1": "folk, people",
        "t2": "fairy hill or mound"
      },
      "expansion": "áes (“folk, people”) + síd (“fairy hill or mound”)",
      "name": "affix"
    }
  ],
  "etymology_text": "From áes (“folk, people”) + síd (“fairy hill or mound”).",
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "10": "",
        "11": "",
        "12": "",
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        "14": "{{{3}}}",
        "15": "",
        "16": "{{{pl2}}}",
        "17": "",
        "18": "{{{pl3}}}",
        "2": "noun",
        "3": "",
        "4": "",
        "5": "",
        "6": "{{{2}}}",
        "7": "",
        "8": "",
        "9": "",
        "cat2": "",
        "g": "m",
        "g2": "",
        "g3": "",
        "head": "",
        "sort": ""
      },
      "expansion": "áes síde m",
      "name": "head"
    },
    {
      "args": {
        "1": "m"
      },
      "expansion": "áes síde m",
      "name": "sga-noun"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "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 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "sga",
          "name": "Folklore",
          "orig": "sga:Folklore",
          "parents": [
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "sga",
          "name": "Mythological creatures",
          "orig": "sga:Mythological creatures",
          "parents": [
            "Fantasy",
            "Mythology",
            "Fiction",
            "Speculative fiction",
            "Culture",
            "Artistic works",
            "Genres",
            "Society",
            "Art",
            "Entertainment",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "inhabitants of fairy mounds, fairies"
      ],
      "id": "en-áes_síde-sga-noun-3KVd02qI",
      "links": [
        [
          "fairy mound",
          "fairy mound"
        ],
        [
          "fairies",
          "fairies"
        ]
      ],
      "raw_glosses": [
        "(collective) inhabitants of fairy mounds, fairies"
      ],
      "tags": [
        "collective",
        "masculine"
      ]
    }
  ],
  "word": "áes síde"
}

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "mga",
            "2": "áes side"
          },
          "expansion": "Middle Irish: áes side\nIrish: aos sí",
          "name": "desctree"
        }
      ],
      "text": "Middle Irish: áes side\nIrish: aos sí"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "sga",
        "2": "áes",
        "3": "síd",
        "t1": "folk, people",
        "t2": "fairy hill or mound"
      },
      "expansion": "áes (“folk, people”) + síd (“fairy hill or mound”)",
      "name": "affix"
    }
  ],
  "etymology_text": "From áes (“folk, people”) + síd (“fairy hill or mound”).",
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "10": "",
        "11": "",
        "12": "",
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        "17": "",
        "18": "{{{pl3}}}",
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        "6": "{{{2}}}",
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        "9": "",
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        "g": "m",
        "g2": "",
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      },
      "expansion": "áes síde m",
      "name": "head"
    },
    {
      "args": {
        "1": "m"
      },
      "expansion": "áes síde m",
      "name": "sga-noun"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Old Irish collective nouns",
        "Old Irish compound terms",
        "Old Irish entries with incorrect language header",
        "Old Irish lemmas",
        "Old Irish masculine nouns",
        "Old Irish multiword terms",
        "Old Irish nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "sga:Folklore",
        "sga:Mythological creatures"
      ],
      "glosses": [
        "inhabitants of fairy mounds, fairies"
      ],
      "links": [
        [
          "fairy mound",
          "fairy mound"
        ],
        [
          "fairies",
          "fairies"
        ]
      ],
      "raw_glosses": [
        "(collective) inhabitants of fairy mounds, fairies"
      ],
      "tags": [
        "collective",
        "masculine"
      ]
    }
  ],
  "word": "áes síde"
}