"-vetr" meaning in Old Norse

{
  "derived": [
    {
      "_dis1": "0 0",
      "word": "þrévetr"
    },
    {
      "_dis1": "0 0",
      "english": "three winters old",
      "word": "þrívetr"
    },
    {
      "_dis1": "0 0",
      "english": "twelve winters old",
      "word": "tolfvetr"
    }
  ],
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "is",
            "2": "-vetur"
          },
          "expansion": "Icelandic: -vetur",
          "name": "desc"
        }
      ],
      "text": "Icelandic: -vetur"
    },
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "nn",
            "2": "-vet",
            "g": "m"
          },
          "expansion": "Norwegian Nynorsk: -vet m",
          "name": "desc"
        },
        {
          "args": {
            "1": "in tvivet, tovet"
          },
          "expansion": "(in tvivet, tovet)",
          "name": "q"
        }
      ],
      "text": "Norwegian Nynorsk: -vet m (in tvivet, tovet)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "non",
        "2": "gem-pro",
        "3": "*-wintruz"
      },
      "expansion": "Proto-Germanic *-wintruz",
      "name": "inh"
    },
    {
      "args": {
        "1": "ang",
        "2": "-wintre"
      },
      "expansion": "Old English -wintre",
      "name": "cog"
    },
    {
      "args": {
        "1": "got",
        "2": "-𐍅𐌹𐌽𐍄𐍂𐌿𐍃"
      },
      "expansion": "Gothic -𐍅𐌹𐌽𐍄𐍂𐌿𐍃 (-wintrus)",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Germanic *-wintruz, derived from *wintruz (“winter, year”), whence Old Norse vetr. Cognate with Old English -wintre and Gothic -𐍅𐌹𐌽𐍄𐍂𐌿𐍃 (-wintrus).",
  "head_templates": [
    {
      "args": {
        "1": "non",
        "2": "suffix"
      },
      "expansion": "-vetr",
      "name": "head"
    }
  ],
  "lang": "Old Norse",
  "lang_code": "non",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "_dis": "89 11",
          "kind": "other",
          "name": "Old Norse entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "years old"
      ],
      "id": "en--vetr-non-suffix-0DUszQXM",
      "links": [
        [
          "year",
          "year"
        ],
        [
          "old",
          "old"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    },
    {
      "glosses": [
        "years lasting"
      ],
      "id": "en--vetr-non-suffix-USN-AbUI",
      "links": [
        [
          "year",
          "year"
        ],
        [
          "lasting",
          "lasting"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "wikipedia": [
    "Old Norse"
  ],
  "word": "-vetr"
}

{
  "categories": [
    "Old Norse entries with incorrect language header",
    "Old Norse lemmas",
    "Old Norse suffixes",
    "Old Norse terms derived from Proto-Germanic",
    "Old Norse terms inherited from Proto-Germanic"
  ],
  "derived": [
    {
      "word": "þrévetr"
    },
    {
      "english": "three winters old",
      "word": "þrívetr"
    },
    {
      "english": "twelve winters old",
      "word": "tolfvetr"
    }
  ],
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "is",
            "2": "-vetur"
          },
          "expansion": "Icelandic: -vetur",
          "name": "desc"
        }
      ],
      "text": "Icelandic: -vetur"
    },
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "nn",
            "2": "-vet",
            "g": "m"
          },
          "expansion": "Norwegian Nynorsk: -vet m",
          "name": "desc"
        },
        {
          "args": {
            "1": "in tvivet, tovet"
          },
          "expansion": "(in tvivet, tovet)",
          "name": "q"
        }
      ],
      "text": "Norwegian Nynorsk: -vet m (in tvivet, tovet)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "non",
        "2": "gem-pro",
        "3": "*-wintruz"
      },
      "expansion": "Proto-Germanic *-wintruz",
      "name": "inh"
    },
    {
      "args": {
        "1": "ang",
        "2": "-wintre"
      },
      "expansion": "Old English -wintre",
      "name": "cog"
    },
    {
      "args": {
        "1": "got",
        "2": "-𐍅𐌹𐌽𐍄𐍂𐌿𐍃"
      },
      "expansion": "Gothic -𐍅𐌹𐌽𐍄𐍂𐌿𐍃 (-wintrus)",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Germanic *-wintruz, derived from *wintruz (“winter, year”), whence Old Norse vetr. Cognate with Old English -wintre and Gothic -𐍅𐌹𐌽𐍄𐍂𐌿𐍃 (-wintrus).",
  "head_templates": [
    {
      "args": {
        "1": "non",
        "2": "suffix"
      },
      "expansion": "-vetr",
      "name": "head"
    }
  ],
  "lang": "Old Norse",
  "lang_code": "non",
  "pos": "suffix",
  "senses": [
    {
      "glosses": [
        "years old"
      ],
      "links": [
        [
          "year",
          "year"
        ],
        [
          "old",
          "old"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    },
    {
      "glosses": [
        "years lasting"
      ],
      "links": [
        [
          "year",
          "year"
        ],
        [
          "lasting",
          "lasting"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "wikipedia": [
    "Old Norse"
  ],
  "word": "-vetr"
}