"áes side" meaning in Middle Irish

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "ga",
            "2": "aos sí"
          },
          "expansion": "Irish: aos sí",
          "name": "desctree"
        }
      ],
      "text": "Irish: aos sí"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "mga",
        "2": "sga",
        "3": "áes síde"
      },
      "expansion": "Old Irish áes síde",
      "name": "inh"
    },
    {
      "args": {
        "1": "sga",
        "2": "áes",
        "3": "side",
        "nocat": "1",
        "t1": "folk, people",
        "t2": "fairy hill or mound"
      },
      "expansion": "By surface analysis, áes (“folk, people”) + side (“fairy hill or mound”)",
      "name": "surf"
    }
  ],
  "etymology_text": "From Old Irish áes síde. By surface analysis, áes (“folk, people”) + side (“fairy hill or mound”).",
  "head_templates": [
    {
      "args": {
        "1": "mga",
        "2": "noun",
        "g": "m"
      },
      "expansion": "áes side m",
      "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": "topical",
          "langcode": "mga",
          "name": "Folklore",
          "orig": "mga:Folklore",
          "parents": [
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "mga",
          "name": "Mythological creatures",
          "orig": "mga: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_side-mga-noun-3KVd02qI",
      "links": [
        [
          "fairies",
          "fairies"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "áes side"
}

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "ga",
            "2": "aos sí"
          },
          "expansion": "Irish: aos sí",
          "name": "desctree"
        }
      ],
      "text": "Irish: aos sí"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "mga",
        "2": "sga",
        "3": "áes síde"
      },
      "expansion": "Old Irish áes síde",
      "name": "inh"
    },
    {
      "args": {
        "1": "sga",
        "2": "áes",
        "3": "side",
        "nocat": "1",
        "t1": "folk, people",
        "t2": "fairy hill or mound"
      },
      "expansion": "By surface analysis, áes (“folk, people”) + side (“fairy hill or mound”)",
      "name": "surf"
    }
  ],
  "etymology_text": "From Old Irish áes síde. By surface analysis, áes (“folk, people”) + side (“fairy hill or mound”).",
  "head_templates": [
    {
      "args": {
        "1": "mga",
        "2": "noun",
        "g": "m"
      },
      "expansion": "áes side m",
      "name": "head"
    }
  ],
  "lang": "Middle Irish",
  "lang_code": "mga",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Middle Irish entries with incorrect language header",
        "Middle Irish lemmas",
        "Middle Irish masculine nouns",
        "Middle Irish multiword terms",
        "Middle Irish nouns",
        "Middle Irish terms derived from Old Irish",
        "Middle Irish terms inherited from Old Irish",
        "mga:Folklore",
        "mga:Mythological creatures"
      ],
      "glosses": [
        "inhabitants of fairy mounds, fairies"
      ],
      "links": [
        [
          "fairies",
          "fairies"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "word": "áes side"
}