"aa" meaning in Manx

{
  "etymology_templates": [
    {
      "args": {
        "1": "gv",
        "2": "sga",
        "3": "oä"
      },
      "expansion": "Old Irish oä",
      "name": "inh"
    },
    {
      "args": {
        "1": "sga",
        "2": "óc",
        "3": "oäc"
      },
      "expansion": "oäc",
      "name": "m"
    },
    {
      "args": {
        "1": "gv",
        "2": "cel-pro",
        "3": "*yowankos"
      },
      "expansion": "Proto-Celtic *yowankos",
      "name": "inh"
    },
    {
      "args": {
        "1": "cy",
        "2": "ieuanc"
      },
      "expansion": "Welsh ieuanc",
      "name": "cog"
    },
    {
      "args": {
        "1": "gv",
        "2": "ine-pro",
        "3": "*h₂yuh₁n̥ḱós"
      },
      "expansion": "Proto-Indo-European *h₂yuh₁n̥ḱós",
      "name": "inh"
    },
    {
      "args": {
        "1": "en",
        "2": "young"
      },
      "expansion": "English young",
      "name": "cog"
    }
  ],
  "etymology_text": "From Old Irish oä, comparative form of oäc, from Proto-Celtic *yowankos (compare Welsh ieuanc), from Proto-Indo-European *h₂yuh₁n̥ḱós (compare English young).",
  "head_templates": [
    {
      "args": {
        "1": "gv",
        "2": "adjective form"
      },
      "expansion": "aa",
      "name": "head"
    }
  ],
  "lang": "Manx",
  "lang_code": "gv",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Manx entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "young, adolescent, immature",
          "word": "aeg"
        }
      ],
      "glosses": [
        "comparative degree of aeg (“young, adolescent, immature”)"
      ],
      "id": "en-aa-gv-adj-8FWGRdBp",
      "links": [
        [
          "aeg",
          "aeg#Manx"
        ]
      ],
      "tags": [
        "comparative",
        "form-of"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɛː/"
    }
  ],
  "word": "aa"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "gv",
        "2": "sga",
        "3": "oä"
      },
      "expansion": "Old Irish oä",
      "name": "inh"
    },
    {
      "args": {
        "1": "sga",
        "2": "óc",
        "3": "oäc"
      },
      "expansion": "oäc",
      "name": "m"
    },
    {
      "args": {
        "1": "gv",
        "2": "cel-pro",
        "3": "*yowankos"
      },
      "expansion": "Proto-Celtic *yowankos",
      "name": "inh"
    },
    {
      "args": {
        "1": "cy",
        "2": "ieuanc"
      },
      "expansion": "Welsh ieuanc",
      "name": "cog"
    },
    {
      "args": {
        "1": "gv",
        "2": "ine-pro",
        "3": "*h₂yuh₁n̥ḱós"
      },
      "expansion": "Proto-Indo-European *h₂yuh₁n̥ḱós",
      "name": "inh"
    },
    {
      "args": {
        "1": "en",
        "2": "young"
      },
      "expansion": "English young",
      "name": "cog"
    }
  ],
  "etymology_text": "From Old Irish oä, comparative form of oäc, from Proto-Celtic *yowankos (compare Welsh ieuanc), from Proto-Indo-European *h₂yuh₁n̥ḱós (compare English young).",
  "head_templates": [
    {
      "args": {
        "1": "gv",
        "2": "adjective form"
      },
      "expansion": "aa",
      "name": "head"
    }
  ],
  "lang": "Manx",
  "lang_code": "gv",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Manx adjective forms",
        "Manx comparative adjectives",
        "Manx entries with incorrect language header",
        "Manx non-lemma forms",
        "Manx terms derived from Old Irish",
        "Manx terms derived from Proto-Celtic",
        "Manx terms derived from Proto-Indo-European",
        "Manx terms inherited from Old Irish",
        "Manx terms inherited from Proto-Celtic",
        "Manx terms inherited from Proto-Indo-European",
        "Manx terms with IPA pronunciation"
      ],
      "form_of": [
        {
          "extra": "young, adolescent, immature",
          "word": "aeg"
        }
      ],
      "glosses": [
        "comparative degree of aeg (“young, adolescent, immature”)"
      ],
      "links": [
        [
          "aeg",
          "aeg#Manx"
        ]
      ],
      "tags": [
        "comparative",
        "form-of"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɛː/"
    }
  ],
  "word": "aa"
}