"сыв" meaning in Tundra Nenets

{
  "head_templates": [
    {
      "args": {
        "1": "yrk",
        "2": "noun",
        "head": "сыв"
      },
      "expansion": "сыв • (siw°)",
      "name": "head"
    },
    {
      "args": {
        "1": "сыв"
      },
      "expansion": "сыв • (siw°)",
      "name": "yrk-noun"
    }
  ],
  "hyphenation": [
    "сыв"
  ],
  "lang": "Tundra Nenets",
  "lang_code": "yrk",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Tundra Nenets entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "yrk",
          "name": "Seasons",
          "orig": "yrk:Seasons",
          "parents": [
            "Nature",
            "Periodic occurrences",
            "All topics",
            "Time",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "winter"
      ],
      "id": "en-сыв-yrk-noun-MMVGH8J7",
      "links": [
        [
          "winter",
          "winter"
        ]
      ],
      "synonyms": [
        {
          "roman": "sira",
          "word": "сыра"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[sɨw(ə̥)]"
    }
  ],
  "word": "сыв"
}

{
  "head_templates": [
    {
      "args": {
        "1": "yrk",
        "2": "noun",
        "head": "сыв"
      },
      "expansion": "сыв • (siw°)",
      "name": "head"
    },
    {
      "args": {
        "1": "сыв"
      },
      "expansion": "сыв • (siw°)",
      "name": "yrk-noun"
    }
  ],
  "hyphenation": [
    "сыв"
  ],
  "lang": "Tundra Nenets",
  "lang_code": "yrk",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 2 entries",
        "Pages with entries",
        "Tundra Nenets entries with incorrect language header",
        "Tundra Nenets lemmas",
        "Tundra Nenets nouns",
        "Tundra Nenets terms with IPA pronunciation",
        "Tundra Nenets terms with redundant head parameter",
        "yrk:Seasons"
      ],
      "glosses": [
        "winter"
      ],
      "links": [
        [
          "winter",
          "winter"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[sɨw(ə̥)]"
    }
  ],
  "synonyms": [
    {
      "roman": "sira",
      "word": "сыра"
    }
  ],
  "word": "сыв"
}

{
  "called_from": "form_descriptions/1698",
  "msg": "unrecognized head form: siw°",
  "path": [
    "сыв"
  ],
  "section": "Tundra Nenets",
  "subsection": "noun",
  "title": "сыв",
  "trace": ""
}