"frisón antiguo" meaning in Spanish

{
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "-"
      },
      "expansion": "frisón antiguo m (uncountable)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "es",
          "name": "Extinct languages",
          "orig": "es:Extinct languages",
          "parents": [
            "Languages",
            "Language",
            "Names",
            "Communication",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Fundamental",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Old Frisian (language)"
      ],
      "id": "en-frisón_antiguo-es-noun-ZTrHjcav",
      "links": [
        [
          "Old Frisian",
          "Old Frisian"
        ]
      ],
      "related": [
        {
          "word": "frisio"
        },
        {
          "word": "frisón"
        }
      ],
      "tags": [
        "masculine",
        "uncountable"
      ],
      "wikipedia": [
        "es:frisón antiguo"
      ]
    }
  ],
  "word": "frisón antiguo"
}

{
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "-"
      },
      "expansion": "frisón antiguo m (uncountable)",
      "name": "es-noun"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "related": [
    {
      "word": "frisio"
    },
    {
      "word": "frisón"
    }
  ],
  "senses": [
    {
      "categories": [
        "Spanish entries with incorrect language header",
        "Spanish lemmas",
        "Spanish masculine nouns",
        "Spanish multiword terms",
        "Spanish nouns",
        "Spanish uncountable nouns",
        "es:Extinct languages"
      ],
      "glosses": [
        "Old Frisian (language)"
      ],
      "links": [
        [
          "Old Frisian",
          "Old Frisian"
        ]
      ],
      "tags": [
        "masculine",
        "uncountable"
      ],
      "wikipedia": [
        "es:frisón antiguo"
      ]
    }
  ],
  "word": "frisón antiguo"
}